Debt Instrument Market Interest Rate
Market interest rate (as a percent)
Represents the market interest rate pertaining to a debt instrument.
Number of Years of Operation within which Acquired Company Achieve Specific Performance Metrics after which Sellers of Contingent Consideration Receive Potential Payment
Number of years of operation within which acquired entity is to achieve performance metrics after which seller of contingent consideration receive potential payment
Represents the number of years of operation within which acquired entity is to achieve performance metrics after which seller of contingent consideration receive potential payment.
Document and Entity Information
Legal Reserve
Legal reserve
Amount of the current period expense charged against operations for estimate of the probable outcome of potential and pending litigation. Excludes statutory reserves for a bank or insurance company.
The cost of borrowed funds accounted for as interest that was charged against earnings during the period and the amount of amortization of deferred charges applied against earnings during the period.
Interest Expense and Amortization of Deferred Charges
Interest expense
Increase (Decrease) in Other Accrued Liabilities and Deferred Liabilities
Accrued expenses and other current liabilities
The increase (decrease) during the reporting period in other expenses incurred but not yet paid and the change during the period in carrying value for all deferred liabilities due within one year or operating cycle.
The cash outflow to acquire assets without physical form usually arising from contractual or other legal rights, excluding goodwill. In addition, the cash outflow associated with the development, modification or acquisition of software programs or applications for internal use (that is, not to be sold, leased or otherwise marketed to others) that qualify for capitalization.
Payments to Acquire Intangible Assets and Software
Purchase of intangible assets
Represents the entire disclosure of significant accounting policies and recent accounting pronouncements.
Significant Accounting Policies and Recent Accounting Pronouncements [Text Block]
Summary of Significant Accounting Policies
Schedule of accrued expenses and other current liabilities
Tabular disclosure of (a) other payables; (b) accrued liabilities; (c) deferred revenue; and (d) the fair value of contingent consideration liabilities, due within one year or within the normal operating cycle if longer.
Schedule of Accrued Liabilities Deferred Revenue and Contingent Consideration Liabilities Current [Table Text Block]
BPPlc [Member]
BP
Represents the information pertaining to BP plc., a major customer of the entity.
Amendment Description
Number of customers
Represents the number of customers on whom the entity significantly relies giving rise to concentration risk.
Concentration Risk Number of Customers
Amendment Flag
Stock Issued During Period Shares New Issues Shares Issued by Selling Stockholder
Number of shares of common stock sold by a selling stockholder
Represents the number of shares sold by selling stockholder during the period.
Common Stock Number of Votes Per Share
Number of votes per share
Represents the number of votes per share, which ordinary shareholders of the Company are entitled to receive.
Incentive Stock Options [Member]
Incentive stock options
Represents the incentive plan stock options as awarded by the company to their employees as a form of incentive compensation.
Nonqualified Stock Options [Member]
Non-qualified stock options
Represents the non-qualified stock options as awarded by the company to their employees as a form of incentive compensation.
Share Based Compensation Arrangement by Share Based Payment Award, Number of Plans Prior to Initial Public Offering
Number of plans prior to entity's IPO
Represents the number of equity-based compensation plans prior to entity's initial public offering.
Asia-Pacific
Asia Pacific [Member]
Dilutive effect of stock options outstanding (in shares)
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of stock options outstanding.
Incremental Common Shares Attributable to Stock Options Outstanding
All Countries [Domain]
Incremental Common Shares Attributable to Restricted Stock Units Outstanding
Dilutive effect of restricted stock units outstanding (in shares)
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of restricted stock units outstanding.
Office Furniture and Equipment [Member]
Office furniture and equipment
Furniture and equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities.
Accrued Salaries Wages and Employee Related Benefits Current
Accrued salaries, wages and related employee benefits
Carrying value as of the balance sheet date of the obligations incurred through that date and payable for salaries, wages, and related employee benefit. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle, if longer).
Carrying value as of the balance sheet date of obligations and payables pertaining to workers compensation and health benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle, if longer).
Accrued Workers Compensation and Health Benefits Current
Accrued workers' compensation and health benefits
Lawsuits for alleged quality defects
Represents the lawsuit filed as a result of alleged quality defects.
Lawsuit for Damages Resulting from Alleged Quality Defects [Member]
Acquisition Related Contingencies [Member]
Acquisition-related contingencies
Represents the contingencies pertaining to business acquisitions by the entity.
Represents the period over which the expected contingent consideration would be payable by the entity based on achievement of specific performance metrics by certain of the acquired companies.
Business Combination, Contingent Consideration Payment Period
Period over which potential acquisition-related contingent consideration would be payable
Represents Services, a business segment of the entity.
Services [Member]
Services
Products and Systems [Member]
Products and Systems
Represents Products and Systems, a business segment of the entity.
Represents International, a business segment of the entity.
International [Member]
International
Current Fiscal Year End Date
Award Type [Axis]
Other Americas [Member]
Other Americas
Represents the information pertaining to North and South America excluding the United States.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Debt and Other Liabilities
Debt and other liabilities assumed
The amount of debt and other liabilities assumed at the acquisition date.
Business Combination, Contingent Consideration Arrangements Change in Amount of Operating Income (Loss)
Increase in income from operations
Represents the amount of change in acquisition-related contingent consideration liabilities recorded in income from operations.
Represents details pertaining to other long-term debt of the entity.
Other Long Term Debt [Member]
Other
Line of Credit Facility Maximum Borrowing Capacity in Non US Currencies
Maximum borrowing capacity in non-U.S. dollar currencies
Represents the maximum borrowing capacity in non-U.S. dollar currencies under the revolving credit facility.
Brazil
BRAZIL
Line of Credit Facility Maximum Borrowing Capacity Available for Issuance of Letters of Credit
Maximum amount available for the issuance of letters of credit
Represents the maximum amount of borrowing capacity under the revolving credit facility that is available for the issuance of letters of credit.
Debt Instrument, Additional Interest Rate Due to Funded Debt Leverage Ratio Exceeding Specified Threshold
Additional interest rate margin if Funded Debt Leverage Ratio exceeds threshold (as a percent)
The percentage points added to the reference rate due to the Funded Debt Leverage Ratio, which is used to compute the variable rate on the debt instrument, exceeding a specified threshold.
Debt Instrument, Imputed Interest Rate
Imputed interest rate (as a percent)
Represents the imputed interest rate pertaining to a debt instrument. Imputed interest rate is the rate considered to be paid even though it has not been actually paid.
Number of consecutive fiscal quarters used for calculating Funded Debt Leverage Ratio
Represents the number of consecutive fiscal quarters immediately preceding the date of determination of the Funded Debt Leverage Ratio.
Debt Instrument, Number of Fiscal Quarters Used for Calculation of Funded Debt Leverage Ratio
Represents the preceding period used for determination of the Interest Coverage Ratio.
Debt Instrument, Preceding Period Used for Calculation of Interest Coverage Ratio
Preceding period used for calculating Interest Coverage Ratio
Funded Debt Leverage Ratio at which the entity will have the benefit of lowest interest margin
Represents the Funded Debt Leverage Ratio at which the entity will have the benefit of lower interest rate margin.
Debt Instrument, Covenant Funded Leverage Ratio Considered for Lower Interest Rate Margin
Document Period End Date
Represents the Funded Debt Leverage Ratio at which the entity will have the maximum interest rate margin.
Debt Instrument, Covenant Funded Leverage Ratio Considered for Maximum Interest Rate Margin
Funded Debt Leverage Ratio at which the entity will bear the maximum interest rate margin
Debt Instrument, Covenant Interest Coverage Ratio
Interest Coverage Ratio
Represents the Interest Coverage Ratio required under the terms of the covenants.
Period for payment under non-compete agreements
Represents the period over which the payments under non-compete agreements are required to be made.
Period for Payment under Noncompete Agreements
Funded Debt Leverage Ratio for additional interest payment
Represents the Funded Debt Leverage Ratio on which the entity will bear an additional interest on debt.
Debt Instrument, Covenant Funded Debt Leverage Ratio for Additional Interest Payment
Represents the Funded Debt Leverage Ratio required under the terms of the covenants.
Debt Instrument Covenant Funded Debt Leverage Ratio
Funded Debt Leverage Ratio
Number of Businesses Acquired as Asset Purchases
Represents the number of businesses acquired that met the definition of "acquisitions of businesses" under the provisions of FASB Accounting Standards Codification (ASC) 805-10-20.
Number of acquisitions by asset purchase
Accrued expenses and other current liabilities
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Also includes the fair value of contingent consideration liabilities and the carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.
Accrued Liabilities Deferred Revenues and Contingent Consideration Liabilities, Current
Total
Accrued Liabilities Deferred Revenues and Contingent Consideration Liabilities Current Disclosure [Text Block]
Accrued Expenses and Other Current Liabilities
The entire disclosure for accrued liabilities, deferred revenues, and the fair value of contingent consideration liabilities at the end of the reporting period.
Current assets acquired, net
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Current Assets and Current Liabilities Net
The amount of assets, net of liabilities, that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.
Number of non-employee directors to whom fully vested common stock is granted
Represents the number of non-employee directors to whom fully vested common stock is granted.
Share Based Compensation Arrangement by Share Based Payment Award, Number of Non Employee Directors to whom Award is Granted
The cash outflow associated with the consideration paid on the achievement of specific performance metrics in connection with acquisition of business during the period.
Payments of Contingent Consideration for Business Acquisitions
Payment of contingent consideration for business acquisitions
Business Combination, Consideration Transferred Debt Repayment Term
Term over which the subordinated notes are payable
Represents the term over which the debt related to liabilities incurred under business acquisition are payable.
Proceeds from Repayments of Former Lines of Credit
The net cash inflow or cash outflow from a former contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings are made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).
Net (repayments) borrowings from former revolver
Debt and other long-term liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Debt and Other Long Term Liabilities
The amount of debt and other long term liabilities assumed at the acquisition date.
Deferred tax liability
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Deferred Tax Assets (Liabilities)
The amount of deferred tax assets (liabilities) acquired at the acquisition date.
Business Acquisition, Additional Information [Abstract]
Additional information
Number of Businesses Acquired as Asset Purchases in France
Number of acquisitions of asset protection businesses, France
Represents the number of businesses acquired that met the definition of "acquisitions of businesses" under the provisions of FASB Accounting Standards Codification (ASC) 805-10-20, in France.
Number of Businesses Acquired as Asset Purchases in Canada
Number of acquisitions of asset protection businesses, Canada
Represents the number of businesses acquired that met the definition of "acquisitions of businesses" under the provisions of FASB Accounting Standards Codification (ASC) 805-10-20 in Canada.
Acquisitions in Fiscal 2013 [Member]
Fiscal 2013 acquisitions
Represents information pertaining to acquisition transactions which occurred during fiscal 2013.
Acquisitions in Fiscal 2012 [Member]
Fiscal 2012 acquisitions
Represents information pertaining to acquisition transactions which occurred during fiscal 2012.
Business Combination, Contingent Consideration Liability Interest Accretion
Represents the amount of interest accretion expense related to the contingent consideration liabilities recorded during the period.
Interest accretion expense related to contingent consideration liabilities
Reclassification
Reclassification [Abstract]
Goodwill
Intangible Assets
Business Acquisition Interest Accretion Contingent Consideration Liabilities Reclassified from Interest Expense to Acquisition Related Expense
Interest accretion expense related to contingent consideration liabilities reclassified from interest expense to acquisition-related expense
Represents the interest accretion expense recorded which is related to contingent consideration liabilities reclassified from interest expense to acquisition-related expense during the period.
Represents the amount required to be paid on a monthly basis under the capital lease obligations.
Capital Lease Obligations Required Monthly Payments
Required monthly payments
Capital Lease Obligations Effective Interest Rate
Effective interest rate (as a percent)
Represents the effective interest rate for the obligations under capital lease.
Defined Contribution Plan Minimum Age for Employees to Contribute Catch Up Contributions Under IRS Limits
Minimum age for employees to contribute catch up contributions under IRS limits
Represents the minimum age for employees to contribute catch up contributions under IRS limits.
Principles of Consolidation [Abstract]
Principles of Consolidation
Number of Months Less Than Actual Period from Acquisition For Which Results of International Segment Subsidiaries are Included in Consolidation
Number of months less than the actual number of months from the acquisition date for which results of international segment subsidiaries are included in consolidation
Represents the number of months less than the actual period from the acquisition date for which results of the International segment subsidiaries are included in the consolidation.
Defined Contribution Plan Continuous Service Period after which Employees Become Eligible to Participate under Plan
Continuous service period required for eligibility of employees to participate under the plan
Represents the continuous service period required for eligibility of employees to participate under the plan.
Defined Contribution Plan Employers Matching Contribution Annual Vesting Period
Vesting period for employer matching contribution
Represents the vesting period for employer matching contribution under the plan.
Represents information pertaining to shareholder and officer of the entity.
Shareholder and Officer [Member]
Shareholder and officer
Related Party Transaction Rent Payments
Total rent payments
Represents the amount of rent paid to related parties under the lease.
Cost of Goods and Services Sold Excluding Depreciation
Cost of revenues
Represents the aggregate cost of goods and services sold during the reporting period, excluding depreciation.
Deferred Tax Assets Capital Lease Obligation
Capital lease obligation
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from capital lease obligation.
Reserve for Uncertain Tax Positions Current
Reserve for uncertain tax positions
Represents the amount reserved for uncertain tax positions during the period.
Long Lived, Assets [Member]
Long-lived assets
Represents the long-lived assets, when it serves as a benchmark in a concentration of risk calculation, representing the sum of all reported long-lived assets as of the balance sheet date.
Country [Axis]
This item represents the list of countries in which the entity operates.
France
FRANCE
Revenue Recognition, Taxes Collected from Customers [Policy Text Block]
Taxes Collected from Customers
Disclosure of accounting policy for taxes collected from customers and remitted to governmental authorities.
Self Insurance [Policy Text Block]
Self-Insurance
Describes an entity's losses which are self-insured as well as the policy used in determining the reserve recorded on the balance sheet.
Represents the extended customer credit term generally provided by the entity.
Extended Customers Credit Term
Extended customers credit term
Interest Rate Derivatives, Outstanding Amount
Outstanding interest rate swap contracts
Represents the outstanding amount of interest rate derivative instruments as of the balance sheet date.
Self Insurance [Abstract]
Self-Insurance
Minimum Amount of Workers Compensation and Health Benefit Claims for which Third Party Excess Insurance Coverage Maintained
Minimum Amount of workers compensation and health benefit claims for which third-party excess insurance coverage maintained
Represents the minimum amount of all workers compensation and health benefit claims for which third-party excess insurance coverage is maintained by the entity to reduce exposure from such claims.
Share Based Compensation, Arrangement by Share Based Payment, Number of Variables in Fair Value Assumptions
Number of variables in Black-Scholes model
Represents the number of variables used in the Black-Scholes fair value assumption model.
Common Stock Number of Shares Offered in Public Offering
Number of shares of common stock offered in public offering
Represents the number of shares of common stock offered in a public offering.
Proceeds from Issuance of Common Stock Used for Payment of Debt Accrued Interest and Expenses Related to Offering
Amount of net proceeds from common stock offering used for payments of debt, accrued interest and expenses related to offering
Represents the amount of net proceeds from common stock offering used for repayments of debt, accrued interest and expenses related to offering.
Proceeds from Issuance of Common Stock Used for Acquisitions and Working Capital Requirement
Proceeds from common stock offering used for acquisitions and working capital purposes
Represents the amount of net proceeds from common stock offering used for acquisitions and working capital purposes.
Range of Exercise Prices from Dollars 6.15 to 13.08 [Member]
$6.15-$13.08
Represents the range of exercise prices between 6.15 dollars to 13.08 dollars.
Range of Exercise Prices from Dollars 13.09 to 22.35 [Member]
$13.09-$22.35
Represents the range of exercise prices between 13.09 dollars to 22.35 dollars.
Share Based Compensation, Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options [Abstract]
Options Outstanding
Share Based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range Exercisable Options [Abstract]
Options Exercisable
Entity Well-known Seasoned Issuer
Finite Lived Intangible Assets Future Amortization Expense Total
Represents the total future amortization expense related to the company's intangible assets.
Total
Entity Voluntary Filers
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations net of change in valuation allowance.
Deferred Income Tax Expense Benefit Net
Net deferred
Entity Current Reporting Status
Defined Contribution Plan [Line Items]
Defined Contribution Plan
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
Entity Filer Category
Defined Contribution Plan [Table]
Schedule of defined contribution plan information.
Entity Public Float
Business Combination, Additional Disclosures [Abstract]
Revenue and income from operations included in the consolidated statement of operations
Entity Registrant Name
Period Lag of International Segment Subsidiaries Consolidated
Difference of period between the consolidation of International segment subsidiaries
Represents the difference of period between the consolidation of International segment subsidiaries.
Entity Central Index Key
Schedule of acquisition-related expense, net
Tabular disclosure of acquisition-related costs.
Schedule of Business Combination Acquisition Related Costs [Table Text Block]
Loss Contingency, Number of Lawsuits Yet to be Filed
Number of lawsuits yet to be filed
Represents the number of new claims yet to be filed pertaining to a loss contingency during the period.
Deferred Income Tax Noncash Expense (Benefit)
The noncash component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.
Deferred income taxes
Acquisition Related Costs And Fair Value Adjustments To Initial Purchase Price Allocation Abstract
No definition available.
Acquisition-related expense, net
Entity Common Stock, Shares Outstanding
Acquisition Related Costs and Fair Value Adjustments to Initial Purchase Price Allocation
Acquisition-related expense, net
This element represents acquisition-related costs incurred in connection with business combinations which costs have been expensed during the period. This also includes adjustments to the fair value of the initial purchase price allocation for acquisitions including, but not limited to, changes in contingent consideration liabilities and other liabilities, accounts receivable, inventory, fixed assets, other assets, and other acquisition-related intangible assets. Acquisition-related costs also include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.
Acquisition-related costs
Acquisitions in Fiscal 2014 [Member]
Fiscal 2014 acquisitions
Represents information pertaining to acquisition transactions which occurred during fiscal 2014.
Business Acquisition Other Information [Abstract]
Other acquisition information
Repayments of Former Lines of Credit
Net repayments against former revolver
The amount of cash outflow for payment of a former contractual arrangement with the lender including, but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.
Employee Stock Ownership Plan Number of Plans
Number of employee stock ownership plans
Represents the number of plans in connection with the employee stock ownership plan.
Stock Option Plan 2007 [Member]
2007 Plan
Represents the incentive stock options plan as awarded by the company to the employees and directors under the two employee stock ownership plans.
Payment of Deposit for Business Combination
Acquisition-related deposit
Represents the cash outflow associated with the deposit paid for acquisition of a business.
Document Fiscal Year Focus
Document Fiscal Period Focus
Entity by Location [Axis]
Location [Domain]
Document Type
Summary of Significant Accounting Policies
Trade accounts receivable
Accounts Receivable, Gross, Current
Accounts payable
Accounts Payable, Current
Accounts receivable, net
Accounts Receivable [Member]
Accounts Receivable
Accounts Receivable, Net [Abstract]
United States
UNITED STATES
Income taxes payable
Accrued Income Taxes, Current
Accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Member]
Amortization period of intangible assets acquired
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Additional paid-in capital
Additional Paid in Capital
Additional paid-in capital
Additional Paid-in Capital [Member]
Adjustments to reconcile net income to net cash provided by operating activities
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Share-based payments
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Excess tax benefit from share-based payment compensation
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Net settlement on vesting of restricted stock units
Adjustments Related to Tax Withholding for Share-based Compensation
Advertising expense
Advertising Expense
Advertising, Promotions and Marketing
Advertising Costs, Policy [Policy Text Block]
Recognized share-based compensation expense
Allocated Share-based Compensation Expense
Allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Amortization of deferred financing costs
Amortization of Financing Costs
Amortization expense
Amortization of Intangible Assets
Antidilutive Securities [Axis]
Earnings per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Name [Domain]
Total shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Total assets
Total assets
Assets
Current Assets
Assets, Current [Abstract]
ASSETS
Assets [Abstract]
Total current assets
Assets, Current
Base rate
Base Rate [Member]
Basis of Accounting [Text Block]
Basis of Presentation
Buildings and improvements
Building and Building Improvements [Member]
Current liabilities acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities
Deferred tax asset
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent
Business Acquisition [Axis]
Subordinated notes issued
Business Combination, Consideration Transferred, Liabilities Incurred
Pro forma information of the results of operations
Business Acquisition, Pro Forma Information [Abstract]
Schedule of pro forma information of the results of operations
Business Acquisition, Pro Forma Information [Table Text Block]
Contingent consideration
Contingent consideration
Business Combination, Contingent Consideration, Asset
Business Combination, Contingent Consideration, Liability
Contingent consideration
Fair value of contingent consideration liabilities
Contingent consideration, current portion
Contingent consideration on achieving specific performance metrics
Acquisitions
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Fair value adjustment to contingent consideration liabilities
Net decrease in acquisition-related contingent consideration liabilities
Percentage of common stock acquired
Business Acquisition, Percentage of Voting Interests Acquired
Revenues
Business Acquisition, Pro Forma Revenue
Business Acquisition, Acquiree [Domain]
Operating income
Business Acquisition, Pro Forma Net Income (Loss)
Acquisitions
Due diligence, professional fees and other transaction costs
Business Acquisition, Transaction Costs
Consideration transferred
Business Combination, Consideration Transferred
Acquisitions
Business Combination Disclosure [Text Block]
Potential acquisition-related contingent consideration, high end of range
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Potential acquisition-related contingent consideration, low end of range
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low
Consideration transferred:
Business Combination, Consideration Transferred [Abstract]
Property, plant and equipment
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Intangibles
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles
Net assets acquired
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest
Estimated fair value of the assets acquired and liabilities assumed
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Aggregate income from operations
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Revenues
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Less: noncontrolling interest
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value
2015
Capital Leases, Future Minimum Payments Due in Two Years
Total Minimum Lease Payments
Capital Leases, Future Minimum Payments Due
2018
Capital Leases, Future Minimum Payments Due in Five Years
Net book value of assets under capital lease
Capital Leases, Balance Sheet, Assets by Major Class, Net
Less: amount representing interest
Capital Leases, Future Minimum Payments, Interest Included in Payments
Current portion of capital lease obligations
Less: current portion of obligations under capital leases
Capital Lease Obligations, Current
Obligations under capital leases, net of current portion
Obligations under capital leases, net of current portion
Capital Lease Obligations, Noncurrent
2016
Capital Leases, Future Minimum Payments Due in Three Years
2017
Capital Leases, Future Minimum Payments Due in Four Years
Future minimum lease payments
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments, Fiscal Year Maturity [Abstract]
Equipment acquired through capital lease obligations
Capital Lease Obligations Incurred
Obligations under Capital Leases
Capital Leases in Financial Statements of Lessee Disclosure [Text Block]
Present value of minimum lease payments
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments
Thereafter
Capital Leases, Future Minimum Payments Due Thereafter
Obligations under capital leases
Capital Leased Assets [Line Items]
2014
Capital Leases, Future Minimum Payments Due, Next Twelve Months
Cash and cash equivalents
Beginning of period
End of period
Cash and Cash Equivalents, at Carrying Value
Cash and Cash Equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease) [Abstract]
Noncash investing and financing
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Commitments and Contingencies
Commitments and contingencies
Commitments and Contingencies.
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common Stock
Common Stock [Member]
Common stock, $0.01 par value, 200,000,000 shares authorized, 28,382,851 and 28,210,862 shares issued and outstanding as of November 30, 2013 and May 31, 2013, respectively
Common Stock, Value, Issued
Common stock, shares issued
Common Stock, Shares, Issued
Common stock, shares authorized
Common Stock, Shares Authorized
Common stock, shares outstanding
Common Stock, Shares, Outstanding
Employee Benefit Plans
Compensation and Employee Benefit Plans [Text Block]
Employee Benefit Plans
Deferred income tax assets and liabilities
Components of Deferred Tax Assets and Liabilities [Abstract]
less: comprehensive income attributable to noncontrolling interest
Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest
Comprehensive Income
Comprehensive Income, Policy [Policy Text Block]
Comprehensive income attributable to Mistras Group, Inc.
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive Income
Comprehensive Income [Member]
Software/Technology
Computer Software, Intangible Asset [Member]
Concentration Risk Type [Domain]
Concentration of Credit Risk
Concentration Risk [Line Items]
Concentrations of credit risk
Concentration Risk Benchmark [Domain]
Concentrations of Credit Risk
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Concentration Risk Type [Axis]
Concentration Risk [Table]
Concentration Risk Benchmark [Axis]
Percentage of concentration risk
Long-lived assets (as a percent)
Concentration Risk, Percentage
Consolidation Items [Domain]
Principles of Consolidation
Consolidation, Policy [Policy Text Block]
Consolidation Items [Axis]
Depreciation related to products and systems
Cost of Goods Sold, Depreciation
Cost of revenues:
Cost of Revenue [Abstract]
Cost of products and systems sold
Cost of Goods Sold
Total cost of revenues
Cost of Goods and Services Sold
Cost of services
Cost of Services
Depreciation
Cost of Goods and Services Sold, Depreciation
Depreciation related to services
Cost of Services, Depreciation
States and local
Current State and Local Tax Expense (Benefit)
Current
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Foreign
Current Foreign Tax Expense (Benefit)
Federal
Current Federal Tax Expense (Benefit)
Total current
Current Income Tax Expense (Benefit)
Customer relationships
Customer Relationships [Member]
Customer concentration risk
Customer Concentration Risk [Member]
Reference rate, description
Debt Instrument, Description of Variable Rate Basis
Long-Term Debt
Debt Instrument [Line Items]
Schedule of Long-term Debt Instruments [Table]
Margin (as a percent)
Debt Instrument, Basis Spread on Variable Rate
Long-Term Debt
Maturity term from the date of acquisition
Debt Instrument, Term
Unamortized discount
Debt Instrument, Unamortized Discount
Interest rate, maximum (as a percent)
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum
Interest rate, minimum (as a percent)
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum
Deferred income tax assets
Deferred Tax Assets, Net of Valuation Allowance [Abstract]
Deferred tax liability recognized for the remittance of undistributed international earnings
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries
Intangible assets
Deferred Tax Assets, Goodwill and Intangible Assets
Deferred income tax liabilities
Deferred Tax Liabilities, Gross
Federal
Deferred Federal Income Tax Expense (Benefit)
Deferred
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Foreign
Deferred Foreign Income Tax Expense (Benefit)
Deferred income taxes
Total deferred
Deferred Income Tax Expense (Benefit)
States and local
Deferred State and Local Income Tax Expense (Benefit)
Net deferred income taxes
Deferred Tax Assets, Net
Deferred revenue
Deferred Revenue, Current
Deferred income tax assets
Deferred Tax Assets, Gross
Share-based compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost
Other
Deferred Tax Assets, Other
Deferred income taxes
Deferred Tax Assets, Net of Valuation Allowance, Current
Inventory
Deferred Tax Assets, Inventory
Net deferred income tax assets
Deferred Tax Assets, Net of Valuation Allowance
Accrued expenses
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities
Allowance for doubtful accounts
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts
Net operating loss carryforward
Deferred Tax Assets, Operating Loss Carryforwards
Goodwill
Deferred Tax Liabilities, Goodwill
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Other
Deferred Tax Liabilities, Other
Deferred income taxes
Deferred Tax Liabilities, Net, Noncurrent
Property and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Intangible assets
Deferred Tax Liabilities, Intangible Assets
Deferred income tax liabilities
Deferred Tax Liabilities, Gross [Abstract]
Company match amount of employee contributions matched up to 6% of annual compensation (as a percent)
Defined Contribution Plan, Employer Matching Contribution, Percent of Match
Percentage of employee's annual compensation for which the company contributes a matching contribution
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Contribution under 401(k) savings plan
Defined Contribution Plan, Cost Recognized
401(k) savings plan
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Depreciation expense
Depreciation
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Depreciation, Depletion and Amortization
Derivative Financial Instruments
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments
Derivatives, Policy [Policy Text Block]
Non-employee directors
Director [Member]
Share-Based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Share-Based Compensation.
Europe
Europe [Member]
Basic earnings per share
Earnings Per Share, Basic [Abstract]
Diluted earnings per share:
Earnings Per Share, Diluted [Abstract]
Earnings per Share
Earnings Per Share [Text Block]
Earnings per common share
Earnings per common share:
Earnings per Share
Effect of exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations
Total provision for income taxes (as a percent)
Effective Income Tax Rate Reconciliation, Percent
Reconciliation of the federal income tax expense
Effective Income Tax Rate Reconciliation, Percent [Abstract]
State taxes, net of federal benefit (as a percent)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Permanent differences (as a percent)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent
Other (as a percent)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Change in valuation allowance (as a percent)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Federal tax at statutory rate (as a percent)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent
Goodwill impairment (as a percent)
Foreign tax rate differentials (as a percent)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Contingent consideration (as a percent)
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent
Potential common stock attributable to stock options outstanding
Stock option awards
Employee Stock Option [Member]
Unrecognized compensation cost, net of estimated forfeitures, related to restricted stock unit awards
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options
Weighted-average period over which unrecognized compensation cost is expected to be recognized
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Unrecognized compensation costs, net of estimated forfeitures, related to stock option awards
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options
Cash proceeds from options exercised
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options
Equity Component [Domain]
Acquisition-related deposit
Escrow Deposit
Total
Estimate of Fair Value Measurement [Member]
Excess Tax Benefit from Share-based Compensation, Financing Activities
Excess tax benefit from share-based compensation
Measurement Frequency [Axis]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Hierarchy [Axis]
Recurring basis
Fair Value, Measurements, Recurring [Member]
Fair Value, Measurement Frequency [Domain]
Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements
Fair Value Hierarchy [Domain]
Fair Value of Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Level 3
Fair Value, Inputs, Level 3 [Member]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Schedule of fair value of the Company's financial liabilities that are required to be remeasured at fair value on a recurring basis
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]
Useful Life
Estimated useful Life
Finite-Lived Intangible Asset, Useful Life
Gross Amount
Finite-Lived Intangible Assets, Gross
2018
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Intangible assets
Software Costs
Finite-Lived Intangible Assets [Line Items]
2016
Finite-Lived Intangible Assets, Amortization Expense, Year Three
Expected Amortization Expense
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets by Major Class [Axis]
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
2014
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
2017
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2015
Finite-Lived Intangible Assets, Amortization Expense, Year Two
Foreign Currency Translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Foreign Country
Foreign Tax Authority [Member]
Foreign currency (gain) loss
Foreign currency (gains) losses
Foreign Currency Transaction Gain (Loss), Realized
Foreign Currency Transaction (Gain) Loss
Foreign Currency Transaction Gain (Loss), before Tax
Foreign Currency Translation
Foreign Currency Translation [Abstract]
(Gain) loss on sale of assets
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Gain on early extinguishment of debt
Gains (Losses) on Extinguishment of Debt
Geographic concentration risk
Geographic Concentration Risk [Member]
Goodwill and Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Goodwill, Impairment Loss
Goodwill impairment
Goodwill impairment (see Note 7)
Goodwill impairment
Goodwill
Balance at the beginning of the period
Balance at the end of the period
Goodwill.
Carrying value of goodwill
Foreign currency translation
Goodwill, Translation Adjustments
Goodwill [Line Items]
Goodwill
Goodwill
Goodwill Disclosure [Text Block]
Goodwill, Purchase Accounting Adjustments
Adjustments to preliminary purchase price allocations
Changes in the carrying amount of goodwill
Goodwill [Roll Forward]
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill acquired during the year
Goodwill
Goodwill, Acquired During Period
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Goodwill
Gross profit
Gross profit
Gross Profit
Corporate and eliminations
Intersegment Eliminations [Member]
Impairment of Long-lived Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Basic (in dollars per share)
Basic earnings per share (in dollars per share)
Income (Loss) from Continuing Operations, Per Basic Share
Income before provision for income taxes from:
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Condensed Consolidated Statements of Income
Income before provision for income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Income Taxes
Income Tax Authority [Domain]
Diluted (in dollars per share)
Diluted earnings per share (in dollars per share)
Income (Loss) from Continuing Operations, Per Diluted Share
Foreign operations
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Income Tax Authority [Axis]
U.S. operations
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Income Tax Disclosure [Text Block]
Income Taxes
Provision for income taxes
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Provision for income taxes
Provision for income taxes
Income Tax Expense (Benefit)
Net change in valuation allowance
Change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Reconciliation of income tax expense at the statutory rate to the effective income tax expense
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income taxes
Income Taxes Paid
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount
Goodwill impairment
Permanent differences
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount
Federal tax at statutory rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Income Taxes
Income Tax, Policy [Policy Text Block]
State taxes, net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Contingent consideration
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount
Foreign tax rate differentials
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Accounts receivable
Increase (Decrease) in Accounts Receivable
Income taxes payable
Increase (Decrease) in Income Taxes Payable
Accounts payable
Increase (Decrease) in Accounts Payable, Trade
Changes in operating assets and liabilities, net of effect of acquisitions of businesses:
Increase (Decrease) in Operating Capital [Abstract]
Net decrease in acquisition-related contingent consideration liabilities
Inventories
Increase (Decrease) in Inventories
Other assets
Increase (Decrease) in Other Operating Assets
Prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Change in restricted cash
Increase (Decrease) in Restricted Cash
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Intangible assets, net
Net Carrying
Intangible Assets, Net (Excluding Goodwill)
Intangible Assets
Intangible Assets Disclosure [Text Block]
Interest
Payment of accrued interest
Interest Paid
Software Costs
Internal Use Software, Policy [Policy Text Block]
Inventories
Total
Inventory, Net
Finished goods
Inventory, Finished Goods, Net of Reserves
Raw materials
Inventory, Raw Materials, Net of Reserves
Inventories
Inventory Disclosure [Text Block]
Less: inventory reserves
Inventory Valuation Reserves
Inventories
Inventory, Policy [Policy Text Block]
Inventories
Work in process
Inventory, Work in Process, Net of Reserves
Services-related consumable supplies
Inventory, Supplies, Net of Reserves
LIBOR
London Interbank Offered Rate (LIBOR) [Member]
Outstanding letters of credit
Letters of Credit Outstanding, Amount
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Land
Land [Member]
Obligations under Capital Leases
Total current liabilities
Liabilities, Current
Total liabilities and equity
Liabilities and Equity
Current Liabilities
Liabilities, Current [Abstract]
Total liabilities
Liabilities
LIABILITIES AND EQUITY
Liabilities and Equity [Abstract]
Liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Total Liabilities
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Outstanding borrowings
Line of Credit Facility, Amount Outstanding
Current borrowing capacity
Line of Credit Facility, Current Borrowing Capacity
Accounts Receivable, net
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Long-term debt
Total
Long-term Debt.
Long-Term Debt
Long-term Debt [Text Block]
2015
Long-term Debt, Maturities, Repayments of Principal in Year Two
2017
Long-term Debt, Maturities, Repayments of Principal in Year Four
2018
Long-term Debt, Maturities, Repayments of Principal in Year Five
Thereafter
Long-term Debt, Maturities, Repayments of Principal after Year Five
2016
Long-term Debt, Maturities, Repayments of Principal in Year Three
Principal payments due under all borrowing agreements
Long-term Debt, Fiscal Year Maturity [Abstract]
Current portion of long-term debt
Less: Current portion
Long-term Debt, Current Maturities
Long-term debt, net of current portion
Long-term debt, net of current portion
Long-term Debt, Excluding Current Maturities
2014
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
Loss Contingency, Nature [Domain]
Loss Contingencies [Table]
Number of purported class action lawsuits filed
Loss Contingency, Claims Settled and Dismissed, Number
Litigation
Loss Contingencies [Line Items]
Loss Contingency Nature [Axis]
Charge against earnings for cases
Loss Contingency, Loss in Period
Machinery and equipment
Machinery and Equipment [Member]
Customer [Axis]
Advertising, Promotions and Marketing
Marketing and Advertising Expense [Abstract]
Corporate and eliminations
Segment Reconciling Items [Member]
Maximum
Maximum [Member]
Minimum
Minimum [Member]
Noncontrolling interests
Stockholders' Equity Attributable to Noncontrolling Interest
Union plan
Multiemployer Plans [Abstract]
Amount of employers contribution to the union plan
Multiemployer Plan, Period Contributions
Union plan
Multiemployer Plans [Line Items]
Long-lived assets amount
Long-Lived Assets
Long-lived assets
Customer [Domain]
Cash flows from financing activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Net change in cash and cash equivalents
Net Cash Provided by (Used in) Continuing Operations
Net income attributable to common shareholders
Net Income (Loss) Available to Common Stockholders, Basic
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Numerator:
Net Income (Loss) Attributable to Parent [Abstract]
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Cash flows from investing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Net income attributable to Mistras Group, Inc.
Net income attributable to Mistras Group, Inc.
Net Income (Loss) Attributable to Parent
Net income
Less: net income attributable to noncontrolling interests, net of taxes
Noncontrolling interest
Net Income (Loss) Attributable to Noncontrolling Interest
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Covenants not to compete
Noncompete Agreements [Member]
Nonoperating Income (Expense) [Abstract]
Other expenses
Notes payable
Notes Payable, Other Payables [Member]
Issuance of notes payable and other debt obligations primarily related to acquisitions
Notes Issued
Number of operating segments
Number of Operating Segments
Number of entities
Number of Businesses Acquired
Noncontrolling interest in subsidiary
Noncontrolling Interest, Increase from Subsidiary Equity Issuance
Noncontrolling Interest
Noncontrolling Interest [Member]
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Future minimum lease payments
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017
Operating Leases, Future Minimum Payments, Due in Four Years
2018
Operating Leases, Future Minimum Payments, Due in Five Years
2016
Operating Leases, Future Minimum Payments, Due in Three Years
Total rent expense
Operating Leases, Rent Expense, Net
2014
Operating Leases, Future Minimum Payments Due, Next Twelve Months
Income from operations
Income from operations
Operating Income (Loss)
Operating Loss Carryforwards [Table]
Income taxes
Operating Loss Carryforwards [Line Items]
Operating segments
Operating Segments [Member]
2015
Operating Leases, Future Minimum Payments, Due in Two Years
Total
Operating Leases, Future Minimum Payments Due
Net operating losses
Operating Loss Carryforwards
Description of Business & Basis of Presentation
Description of Business & Basis of Presentation
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Other comprehensive income (loss), net of tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Other assets
Other Assets, Noncurrent
Other
Other Noncash Income (Expense)
Other
Other Intangible Assets [Member]
Other comprehensive income/(loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other long-term liabilities
Other Liabilities, Noncurrent
Other accrued expenses
Other Accrued Liabilities, Current
Foreign currency translation adjustments
Other Comprehensive (Income) Loss, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest
Total Mistras Group, Inc. Stockholders' Equity
Parent [Member]
Accrued Expenses and Other Current Liabilities
Payments for employees' tax obligations
Taxes paid related to net share settlement of share-based awards
Payments Related to Tax Withholding for Share-based Compensation
Acquisition of businesses, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Cash paid
Payments to Acquire Businesses, Gross
Payments to Acquire Interest in Subsidiaries and Affiliates
Purchase of remaining noncontrolling interest in subsidiary
Purchase of property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Payment of costs and expenses related to the offering
Payments of Stock Issuance Costs
Debt issuance costs
Payments of Debt Issuance Costs
Payment of financing costs
Payments of Financing Costs
Plan Name [Domain]
Plan Name [Axis]
Accretion of preferred stock
Preferred Stock, Accretion of Redemption Discount
Preferred stock, 10,000,000 shares authorized
Preferred Stock, Value, Issued
Preferred stock, shares outstanding
Preferred Stock, Shares Issued
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Preferred Stock, Shares Outstanding
Preferred stock, shares outstanding
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Reclassification
Reclassification, Policy [Policy Text Block]
Proceeds from capital contribution from noncontrolling interests
Proceeds from Noncontrolling Interests
Net borrowings from current revolver
Proceeds from Lines of Credit
Proceeds from borrowings of long-term debt
Proceeds from Issuance of Long-term Debt
Net proceeds from other short-term borrowings
Proceeds from Other Short-term Debt
Proceeds from the exercise of stock options
Proceeds from Stock Options Exercised
Proceeds from sale of equipment
Proceeds from Sale of Property, Plant, and Equipment
Net income
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Useful Life
Property, Plant and Equipment, Useful Life
Property, plant and equipment, gross
Property, Plant and Equipment, Gross
Property, Plant and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Property, plant and equipment, net
Property, plant and equipment, net
Property, Plant and Equipment, Net.
Property, Plant and Equipment, net
Schedule of Property, plant and equipment
Property, Plant and Equipment [Table Text Block]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, net
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment, net
Property, Plant and Equipment [Line Items]
Provision for doubtful accounts
Provision for Doubtful Accounts
Selected Quarterly Financial Information (unaudited)
Quarterly Financial Information [Text Block]
Selected Quarterly Financial Information (unaudited)
Range [Axis]
Range [Domain]
Accounts Receivable, net
Accounts receivable, net
Total
Receivables, Net, Current
Changes in company's gross unrecognized tax benefits, excluding interest and penalties
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Related Party Transaction [Line Items]
Related Party [Axis]
Related Party [Domain]
Related Party Transactions
Repayment of outstanding balance of term loan
Repayments of Secured Debt
Repayment of outstanding balance of revolver
Repayments of Long-term Lines of Credit
Repayment of capital lease obligations
Repayments of Long-term Capital Lease Obligations
Net (repayments) proceeds from other short-term borrowings
Repayments of Other Short-term Debt
Net borrowings against revolver
Repayments of Lines of Credit
Repayment of long-term debt
Repayments of Long-term Debt
Research and engineering
Research and Development Expense
Research and Engineering
Research and Development Expense, Policy [Policy Text Block]
Restricted stock unit awards
Restricted Stock Units (RSUs) [Member]
Restricted cash
Restricted Cash and Cash Equivalents, Current
Retained earnings (accumulated deficit)
Retained Earnings [Member]
Retained earnings
Retained Earnings (Accumulated Deficit)
Revenue Recognition
Revenue Recognition [Abstract]
Revenue Recognition
Revenue Recognition, Policy [Policy Text Block]
Revenue from transaction with other operating segments
Revenues
Revenue by geographic area
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues:
Revenues [Abstract]
Senior credit facility
Revolving Credit Facility [Member]
Weighted Average Exercise Price (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price
Options Exercisable (in dollars)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Expected term
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Weighted Average Exercise Price (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price
Expiration term
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term
Weighted Average Remaining Life
Schedule of expected amortization expense of intangible assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Net proceeds from the offering
Net proceeds from issuance of common stock
Sale of Stock, Consideration Received on Transaction
Issuance of common stock from secondary offering, net
Products and systems
Sales Revenue, Goods, Net
Total revenues
Revenues
Revenue, Net
Revenues
Sales [Member]
Services
Sales Revenue, Services, Net
Schedule of Multiemployer Plans [Table]
Summary of estimated fair value of assets acquired and liabilities assumed at the date of acquisition
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule of shares that were excluded from the computation of diluted earnings per share
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Summary of stock option activity, weighted average exercise prices, options outstanding and exercisable
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Schedule of assumptions used in valuing the options granted
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of provision for income taxes
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of principal payments due under all borrowing agreements
Schedule of Maturities of Long-term Debt [Table Text Block]
Scheduled future minimum lease payments
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
Schedule of inventories
Schedule of Inventory, Current [Table Text Block]
Schedule of provision for income taxes computed by applying the statutory federal tax rate
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of income before provision for income taxes
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Schedule of deferred income tax assets and liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Summary of changes in Company's gross unrecognized tax benefits, excluding interest and penalties
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Capital Leased Assets [Table]
Schedule of future minimum lease payments under noncancelable operating leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Summary of the quarterly results of operations
Schedule of Quarterly Financial Information [Table Text Block]
Schedule of revenue and long-lived assets by geographic area
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
Schedule of computations of basic and diluted earnings per share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of gross amount, accumulated amortization and net carrying amount of intangible assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Schedule of cash proceeds from, and the aggregate intrinsic value of, stock options exercised
Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of long-term debt
Schedule of Long-term Debt Instruments [Table Text Block]
Schedule of changes in carrying amount of goodwill
Schedule of Goodwill [Table Text Block]
Schedule of Goodwill [Table]
Schedule of consolidated financial information by segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Related Party Transactions, by Related Party [Table]
Property, Plant and Equipment [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of revenues by geographic area
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]
Schedule of accounts receivable
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Schedule of information concerning outstanding and exercisable options
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Financial information by segment
Segment Reporting Information [Line Items]
Segments [Domain]
Segment Disclosure
Segment Disclosure
Segment Reporting Disclosure [Text Block]
Geographical [Domain]
Selling, general and administrative expenses
Selling, general and administrative expense
Selling, General and Administrative Expense
Series of Individually Immaterial Business Acquisitions
Series of Individually Immaterial Business Acquisitions [Member]
Acquisition of asset protection business
Additional disclosures
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]
Weighted Average Exercise Price (in dollar per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Unvested restricted stock units outstanding (in shares)
Number of additional awards available for grant
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized
Shares vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Share-based Compensation
Share-based compensation expense
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Vesting period
Stock options granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option activity, weighted average exercise prices, options outstanding and exercisable
Share-based compensation
Share-Based Compensation
Number of fully vested common stock granted
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
Common stock price per share (in dollars per share)
Share Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Dividend yield (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Fair value of shares vested
Grant date fair value of shares vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Options exercisable at end of year (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Options exercisable and weighted average grant date fair value
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Number of further awards that may be granted under the 2007 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Aggregate intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Expected volatility (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Number of shares authorized for grants
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Risk-free interest rate (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Share-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Weighted average grant date fair value (per share) of options granted during the period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Expired or forfeited (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Expired or forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Outstanding at end of year (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Outstanding at beginning of year (in dollars per share)
Share-based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Stock options outstanding (in shares)
Outstanding at beginning of year (in shares)
Outstanding at end of year (in shares)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding and exercisable options
Options Outstanding (in dollars)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Exercise Price Range [Axis]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
Common Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Equity Award [Domain]
Exercise price, lower range limit (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit
Total Options Outstanding (in shares)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options
Number Exercisable (in shares)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options
Exercise price, upper range limit (in dollars per share)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit
Balance (in shares)
Balance (in shares)
Shares, Issued
Shares withheld by company for employees' tax obligations
Shares Paid for Tax Withholding for Share Based Compensation
Shipping and Handling Costs
Shipping and Handling Cost, Policy [Policy Text Block]
Anticipated decrease in unrecognized tax benefits, excluding interest and penalties within the next 12 months
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit
State
State and Local Jurisdiction [Member]
Statement [Table]
Statement
Statement [Line Items]
Consolidated Statements of Equity
Geographical [Axis]
Condensed Consolidated Statements of Cash Flows
Equity Components [Axis]
Condensed Consolidated Statements of Comprehensive Income
Condensed Consolidated Balance Sheets
Segments [Axis]
Stock Issued During Period, Shares, Period Increase (Decrease)
Net settlement on vesting of restricted stock units (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
Issuance of common stock upon conversion of class A & B preferred stock
Stock Issued During Period, Value, Conversion of Convertible Securities
Share-based payments (in shares)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Exercise of stock options (in shares)
Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Number of shares of common stock sold
Stock Issued During Period, Shares, New Issues
Issuance of common stock upon conversion of class A & B preferred stock, (in shares)
Stock Issued During Period, Shares, Conversion of Convertible Securities
Issuance of common stock
Stock Issued During Period, Value, New Issues
Equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Other
Stockholders' Equity, Other
Stockholders' Equity, Period Increase (Decrease)
Total Mistras Group, Inc. stockholders' equity
Stockholders' Equity Attributable to Parent
Total equity
Balance
Balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Subsequent Event
Subsequent Events [Text Block]
Subsequent Event
Subsequent Event [Table]
Subsequent event
Subsequent Event [Line Items]
Subsequent Event
Subsequent Event [Member]
Subsequent Event Type [Domain]
Subsequent Event Type [Axis]
Supplemental disclosure of cash paid
Supplemental Cash Flow Information [Abstract]
Title of Individual [Axis]
Relationship to Entity [Domain]
Accounts Receivable
Trade and Other Accounts Receivable, Policy [Policy Text Block]
Cost capitalized
Unamortized Debt Issuance Expense
Accrued unbilled revenues
Unbilled Receivables, Current
Net (loss) income of foreign subsidiaries
Undistributed Earnings of Foreign Subsidiaries
Interest rate swap
Unrealized Gain (Loss) on Derivatives
Current year acquisitions
Unrecognized Tax Benefits, Increase Resulting from Acquisition
Impact of foreign exchange fluctuation
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation
Additions for tax positions related to the current fiscal year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Settlements
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Decrease for tax positions related to prior years
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Unrecognized tax benefits including penalties and interest, that would affect the effective tax rate, if recognized
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Reduction related to the expiration of statutes of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Balance at the beginning of the period
Balance at the end of the period
Unrecognized Tax Benefits
Additions for tax positions related to prior years
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Variable Rate [Domain]
Variable Rate [Axis]
Denominator:
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average common shares outstanding:
Denominator:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)
Weighted average common shares outstanding
Weighted Average Number of Shares Outstanding, Basic
Diluted (in shares)
Weighted average common shares outstanding, diluted
Weighted Average Number of Shares Outstanding, Diluted
Gain on extinguishment of long-term debt
Expenses related to deferred financing costs
Write off of Deferred Debt Issuance Cost
Loss on extinguishment of long-term debt