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
Acquisition-related costs
Acquisition Related Costs and Fair Value Adjustments to Initial Purchase Price Allocation
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 expense (See Note 5)
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.
Interest expense
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
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.
Award Type [Axis]
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
Significant Accounting Policies and Recent Accounting Pronouncements [Text Block]
Summary of Significant Accounting Policies
Represents the entire disclosure of significant accounting policies and recent accounting pronouncements.
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 Excluding Shares Issued by Selling Stockholder
Number of shares of common stock sold by Company
Represents the number of shares issued during the period excluding the shares sold by selling stockholders.
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.
Long Term Incentive Plan 2009 [Member]
2009 Plan
Represents information pertaining to 2009 Long-Term Incentive Plan, which becomes effective upon the closing of the IPO.
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 Arrangements, by Share Based Payment Award Options Expiration Term
Expiration term
The period of time, from the grant date until the time at which the share-based [option] award expires.
Share Based Compensation Arrangement, by Share Based Payment Award, Number of Plans Prior to IPO
Number of plans prior to company's IPO
Represents the number of equity-based compensation plans prior to entity's initial public offering.
Incremental Common Shares Attributable to Stock Options Outstanding
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 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 worker compensation and health benefits
Represents the lawsuits filed against the entity for alleged violation of California labor and employment law.
Lawsuits for Alleged Violation of California Labor and Employment Law [Member]
Lawsuits for alleged violations of California labor and employment law
Acquisition Related Contingencies [Member]
Acquisition-related contingencies
Represents the contingencies pertaining to business acquisitions by the entity.
Business Acquisition Contingent Consideration Payment Period
Period over which potential acquisition-related contingent consideration would be payable
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.
Current Fiscal Year End Date
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.
International [Member]
International
Represents International, a business segment of the entity.
Other Americas [Member]
Other Americas
Represents the information pertaining to Other Americas.
Europe [Member]
Europe
Represents the information pertaining to Europe.
Asia Pacific [Member]
Asia-Pacific
Represents the information pertaining to Asia-Pacific.
Business Acquisition Business Acquisition Cost of Acquired Entity Debt and Other Liabilities Assumed
Debt and other liabilities assumed
Represents the amount of debt and other liabilities assumed in business acquisitions.
Business Acquisition Contingent Consideration Liabilities Fair Value
Represents the fair value as of the balance sheet date of potential payments under the contingent consideration arrangement.
Fair value of contingent consideration liabilities
Business Combination Contingent Consideration Arrangements Change in Amount of Operating Income (Loss)
Net increase in income from operations
Represents the amount of change in acquisition-related contingent consideration liabilities recorded in income from operations.
Other Long Term Debt [Member]
Other
Represents details pertaining to other long-term debt of the entity.
Debt Instrument Variable Rate Base [Axis]
The alternative reference rates that may be used to calculate the variable interest rate of the debt instrument.
Document Period End Date
Debt Instrument Variable Rate Base [Domain]
Identification of the reference rate that is used to calculate the variable interest rate of the debt instrument.
Debt Instrument, Variable Rate Base LIBOR [Member]
LIBOR
Represents the London Interbank Offered Rate (LIBOR) used to calculate the variable interest rate of the debt instrument.
Debt Instrument Variable Rate Base, Base Rate [Member]
Base rate
Represents the base rate used to calculate the variable interest rate of the debt instrument.
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.
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 (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
Debt Instrument Covenant Funded Leverage Ratio Considered for Lower Interest Rate Margin
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 Maximum Interest Rate Margin
Funded Debt Leverage Ratio at which the entity will bear the maximum interest rate margin
Represents the Funded Debt Leverage Ratio at which the entity will have 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.
Debt Instrument Maturity Term
Maturity term from the date of acquisition
Represents the term of the debt agreement.
Period for Payment under Non-compete Agreements
Period for payment under non-compete agreements
Represents the period over which the payments under non-compete agreements are required to be made.
Debt Instrument Covenant Funded Debt Leverage Ratio for Additional Interest Payment
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
Funded Debt Leverage Ratio
Represents the Funded Debt Leverage Ratio required under the terms of the covenants.
Noncontrolling Interest, Maximum Ownership Percentage
Maximum ownership percentage for noncontrolling interest
Represents the maximum percentage of ownership of common stock or equity participation in a consolidated investee, which an amount of noncontrolling interest are reported in stockholders equity in the accompanying consolidated balance sheets.
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 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 of asset protection businesses
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 liabilities assumed, net
Business Acquisition Purchase Price Allocation Current Assets and Current Liabilities, Net
The amount of acquisition cost of a business combination allocated to current assets, net of current liabilities, of the acquired entity.
Share Based Compensation Arrangement by Share Based Payment Award Number of Non Employee Directors to whom Award is Granted
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.
Payments of Contingent Consideration for Business Acquisitions
Payment of contingent consideration for business acquisitions
The cash outflow associated with the consideration paid on the achievement of specific performance metrics in connection with acquisition of business during the period.
Represents the term over which the debt related to liabilities incurred under business acquisition are payable.
Business Acquisition Cost of Acquired Entity Debt Repayment Term
Term over which the subordinated notes are payable
Contingent Consideration Fair Value Disclosure
Contingent consideration
Portion of balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of potential payments under the contingent consideration arrangement including cash and shares.
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 borrowings from former revolver
Represents the amount of debt and other long-term liabilities assumed in business acquisitions.
Business Acquisition Cost of Acquired Entity Debt and Other Long Term Liabilities Assumed
Debt and other long-term liabilities
Business Acquisition Purchase Price Allocation Deferred Tax Assets Liabilities
Deferred tax liability
Gross amount of acquisition cost of a business combination allocated to deferred tax assets (liabilities).
Other acquisition information
Business Acquisition, Other Information [Abstract]
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.
Summary of Significant Accounting Policies
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Filer Category
Entity Public Float
Entity Registrant Name
Entity Central Index Key
Entity Common Stock, Shares Outstanding
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Type
Accounts Receivable, Gross, Current
Trade accounts receivable
Accounts Payable, Current
Accounts payable
Accounts Receivable [Member]
Accounts receivable, net
UNITED STATES
United States
Accrued Income Taxes, Current
Income taxes payable
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated depreciation and amortization
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive loss
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 (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities
Excess tax benefit from stock compensation
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Stock compensation
Adjustments Related to Tax Withholding for Share-based Compensation
Net settlement on vesting of restricted stock units
Allocated Share-based Compensation Expense
Recognized stock-based compensation expense
Allowance for Doubtful Accounts Receivable, Current
Allowance for doubtful accounts
Amortization of Financing Costs
Amortization of deferred financing costs
Current Assets
Assets, Current [Abstract]
ASSETS
Assets [Abstract]
Total current assets
Assets, Current
Total assets
Assets
Total assets
Building and Building Improvements [Member]
Building and improvements
Business Acquisition [Axis]
Consideration paid in cash
Business Acquisition, Cost of Acquired Entity, Cash Paid
Cash paid
Consideration in form of subordinated notes
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred
Subordinated notes issued
Pro forma information of the results of operations
Business Acquisition, Pro Forma Information [Abstract]
Contingent consideration, current portion
Business Acquisition, Contingent Consideration, at Fair Value
Contingent consideration
Goodwill
Business Acquisition, Purchase Price Allocation, Goodwill Amount
Percentage of common stock acquired
Business Acquisition, Percentage of Voting Interests Acquired
Revenues
Business Acquisition, Pro Forma Revenue
Business Acquisition, Acquiree [Domain]
Schedule of pro forma information of the results of operations
Business Acquisition, Pro Forma Information [Table Text Block]
Deferred tax asset
Business Acquisition, Purchase Price Allocation, Deferred Tax Assets, Noncurrent
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net
Net assets acquired
Estimated fair value of the assets acquired and liabilities assumed
Business Acquisition, Purchase Price Allocation [Abstract]
Income from operations
Business Acquisition, Pro Forma Net Income (Loss)
Acquisitions
Intangibles, primarily customer relationships
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets
Acquisitions
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Purchase Price
Purchase price
Less: noncontrolling interest
Business Acquisition, Purchase Price Allocation, Noncontrolling Interest
Property, plant and equipment
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment
Revenues
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Revenues and income from operations included in the consolidated statement of operations
Business Combination, Pro Forma Information [Abstract]
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
Income from operations
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Potential acquisition-related contingent consideration, low end of range
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low
Net decrease in acquisition-related contingent consideration liabilities
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Capital Lease Obligations Incurred
Equipment acquired through capital lease obligations
Current portion of capital lease obligations
Capital Lease Obligations, Current
Capital Lease Obligations, Noncurrent
Obligations under capital leases, net of current portion
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Beginning of period
End of period
Cash and Cash Equivalents, Period Increase (Decrease) [Abstract]
Cash and cash equivalents
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Noncash investing and financing
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Commitments and contingencies
Commitments and Contingencies.
Common Stock
Common Stock [Member]
Common stock, shares outstanding
Common Stock, Shares, Outstanding
Common Stock, Value, Issued
Common stock, $0.01 par value, 200,000,000 shares authorized, 28,161,857 and 28,025,507 shares issued and outstanding as of November 30, 2012 and May 31, 2012, respectively
Common stock, shares issued
Common Stock, Shares, Issued
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized
Common Stock, Shares Authorized
Comprehensive income attributable to Mistras Group, Inc.
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive (income) loss attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive income
Comprehensive Income
Comprehensive Income [Member]
Concentration Risk Type [Domain]
Concentration Risk [Line Items]
Concentration of Credit Risk
Concentration Risk Benchmark [Domain]
Concentration Risk [Table]
Concentration Risk Benchmark [Axis]
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Concentration of Credit Risk
Concentration Risk Type [Axis]
Concentration Risk, Percentage
Percentage of concentration risk
Consolidation, Policy [Policy Text Block]
Principles of consolidation
Cost of revenues:
Cost of Revenue [Abstract]
Cost of Goods Sold
Cost of products sold
Cost of Goods and Services Sold
Total cost of revenues
Cost of Services, Depreciation
Depreciation related to services
Depreciation related to products
Cost of Goods Sold, Depreciation
Cost of Services
Cost of services
Customer Concentration Risk [Member]
Customer concentration risk
Debt Instrument, Description of Variable Rate Basis
Reference rate, description
Debt Instrument [Line Items]
Long-Term Debt
Schedule of Long-term Debt Instruments [Table]
Long-Term Debt
Debt Instrument, Basis Spread on Variable Rate
Margin (as a percent)
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum
Interest rate, minimum (as a percent)
Debt Instrument, Unamortized Discount
Unamortized discount
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum
Interest rate, maximum (as a percent)
Title of Individual [Axis]
Deferred Income Tax Expense (Benefit)
Deferred income taxes
Deferred income taxes
Deferred Tax Assets, Net of Valuation Allowance, Current
Deferred Revenue, Current
Deferred revenues
Deferred Tax Liabilities, Net, Noncurrent
Deferred income taxes
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Depreciation, Depletion and Amortization
Depreciation and amortization
Depreciation
Depreciation expense
Non-employee directors
Director [Member]
Earnings Per Share, Basic [Abstract]
Basic earnings per share
Earnings Per Share, Diluted [Abstract]
Diluted earnings per share:
Earnings per Share
Earnings Per Share [Text Block]
Earnings per Share
Earnings per common share (see Note 4):
Effect of exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition
Weighted-average period over which unrecognized compensation cost is expected to be recognized
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options
Cash proceeds from options exercised
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options
Unrecognized compensation cost, net of estimated forfeitures, related to stock option awards
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options
Unrecognized compensation cost, net of estimated forfeitures, related to restricted stock unit awards
Equity Component [Domain]
Estimate of Fair Value, Fair Value Disclosure [Member]
Total
Excess tax benefit from stock compensation
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities
Measurement Frequency [Axis]
Fair Value, Hierarchy [Axis]
Recurring basis
Fair Value, Measurements, Recurring [Member]
Fair Value, Measurement Frequency [Domain]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements
Fair Value Measurements
Fair Value Disclosures [Text Block]
Schedule of fair value of the 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]
Level 3
Fair Value, Inputs, Level 3 [Member]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Foreign Currency Transaction Gain (Loss), Realized
Foreign currency loss (gain)
Gain (Loss) on Disposition of Assets
Loss (gain) on sale of assets
Goodwill
Goodwill
Goodwill and Intangible Assets, Policy [Policy Text Block]
Goodwill and Intangible Assets
Gross Profit
Gross profit
Gross profit
Consolidated Statements of Operations
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Income before provision for income taxes
Basic (in dollars per share)
Income (Loss) from Continuing Operations, Per Basic Share
Basic earnings per share (in dollars per share)
Diluted (in dollars per share)
Income (Loss) from Continuing Operations, Per Diluted Share
Diluted earnings per share (in dollars per share)
Income Tax Expense (Benefit)
Provision for income taxes
Income Taxes Paid
Income taxes
Increase (Decrease) in Accounts Payable, Trade
Accounts payable
Income taxes payable
Increase (Decrease) in Income Taxes Payable
Accounts receivable
Increase (Decrease) in Accounts Receivable
Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities, net of effect of acquisitions of businesses
Increase (Decrease) in Prepaid Expense and Other Assets
Prepaid expenses and other current assets
Other assets
Increase (Decrease) in Other Operating Assets
Inventories
Increase (Decrease) in Inventories
Increase (Decrease) in Restricted Cash
Change in restricted cash
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Intangible assets, net
Intangible Assets, Net (Excluding Goodwill)
Interest Paid
Interest
Inventory Valuation Reserves
Inventory reserves
Inventory, Finished Goods, Net of Reserves
Finished goods
Inventory, Raw Materials, Net of Reserves
Raw materials
Inventories, net
Inventory Disclosure [Text Block]
Inventories, net
Inventory, Net
Total
Inventories, net
Inventory, Work in Process, Net of Reserves
Work in process
Inventory, Supplies, Net of Reserves
Supplies
Letters of Credit Outstanding, Amount
Outstanding letters of credit
Long-term Debt, Type [Domain]
Long-term Debt, Type [Axis]
Land [Member]
Land
Liabilities, Current
Total current liabilities
Liabilities, Fair Value Disclosure
Total Liabilities
Current Liabilities
Liabilities, Current [Abstract]
Liabilities
Total liabilities
LIABILITIES, PREFERRED STOCK AND EQUITY
Liabilities and Equity [Abstract]
Liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities, preferred stock and equity
Liabilities and Equity
Line of Credit Facility, Maximum Borrowing Capacity
Maximum borrowing capacity
Line of Credit Facility, Amount Outstanding
Outstanding borrowings
Line of Credit Facility, Current Borrowing Capacity
Current borrowing capacity
Accounts Receivable, net
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Long-term Debt.
Long-term debt
Long-Term Debt
Long-term Debt [Text Block]
Current portion of long-term debt
Long-term Debt, Current Maturities
Less: Current maturities
Long-term Debt, Excluding Current Maturities
Long-term debt, net of current portion
Long-term debt, net of current maturities
Loss Contingencies [Table]
Loss Contingency, Loss in Period
Charge against earnings for cases
Loss Contingency Nature [Axis]
Number of purported class action lawsuits filed
Loss Contingency, Claims Settled and Dismissed, Number
Loss Contingencies [Line Items]
Litigation
Loss Contingency, Nature [Domain]
Machinery and Equipment [Member]
Machinery and equipment
Major Customers [Axis]
Significant Reconciling Items [Member]
Corporate and eliminations
Maximum
Maximum [Member]
Minimum
Minimum [Member]
Noncontrolling interest
Stockholders' Equity Attributable to Noncontrolling Interest
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest
Noncontrolling interest in subsidiary
Long-Lived Assets
Long-lived assets
Name of Major Customer [Domain]
Cash flows from financing activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
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 cash used in investing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Net Income (Loss) Available to Common Stockholders, Basic
Net income attributable to common shareholders
Net Income (Loss) Attributable to Parent [Abstract]
Numerator:
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Cash flows from investing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Net Income (Loss) Attributable to Parent
Net income attributable to Mistras Group, Inc.
Net income attributable to Mistras Group, Inc.
Net Income (Loss) Attributable to Noncontrolling Interest
Net (income) loss attributable to noncontrolling interests, net of taxes
Noncontrolling interest
New Accounting Pronouncements, Policy [Policy Text Block]
Recent Accounting Pronouncements
Other expenses
Nonoperating Income (Expense) [Abstract]
Notes Payable, Other Payables [Member]
Notes payable
Notes Issued
Issuance of notes payable and other debt obligations primarily related to acquisitions
Number of Operating Segments
Number of operating segments
Number of companies acquired
Number of entities
Number of Businesses Acquired
Noncontrolling Interest
Noncontrolling Interest [Member]
Operating Income (Loss)
Income from operations
Income from operations
Description of Business & Basis of Presentation
Description of Business & Basis of Presentation
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Other comprehensive income, net of tax
Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income (loss)
Other assets
Other Assets, Noncurrent
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Foreign currency translation adjustments
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax (Deprecated 2012-01-31)
Other Liabilities, Noncurrent
Other long-term liabilities
Other Accrued Liabilities, Current
Other accrued expenses
Total Mistras Group, Inc. Stockholders' Equity
Parent [Member]
Accrued Expenses and Other Current Liabilities
Payments Related to Tax Withholding for Share-based Compensation
Taxes paid related to net share settlement of equity awards
Payments for employees' tax obligations
Payments of Debt Issuance Costs
Debt issuance costs
Purchase of property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Acquisition of businesses, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Payments to Acquire Businesses, Gross
Cash outlay on acquisition
Cash paid
Payments of Financing Costs
Payment of financing costs
Plan Name [Domain]
Plan Name [Axis]
Preferred Stock, Value, Issued
Preferred stock, 10,000,000 shares authorized
Preferred Stock, Shares Authorized
Preferred stock, shares authorized
Preferred Stock, Accretion of Redemption Discount
Accretion of preferred stock
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Reclassification, Policy [Policy Text Block]
Reclassification
Proceeds from (Repayments of) Lines of Credit
Net repayments against current revolver
Proceeds from Other Short-term Debt
Net proceeds from other short-term borrowings
Proceeds from Issuance of Long-term Debt
Proceeds from borrowings of long-term debt
Proceeds from Issuance of Common Stock
Net proceeds from issuance of common stock
Net proceeds from the offering
Net borrowings from current revolver
Proceeds from Lines of Credit
Proceeds from sale of equipment
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from Stock Options Exercised
Proceeds from the exercise of stock options
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net income
Net income
Property, Plant and Equipment, Useful Life
Useful Life
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, net
Property, plant and equipment, net
Property, Plant and Equipment, Net.
Property, plant and equipment, net
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, net
Property, Plant and Equipment, Gross
Property, plant and equipment, gross
Property, Plant and Equipment [Table Text Block]
Schedule of Property, plant and equipment
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, net
Property, Plant and Equipment Disclosure [Text Block]
Provision for Doubtful Accounts
Provision for doubtful accounts
Range [Axis]
Range [Domain]
Accounts Receivable, net
Receivables, Net, Current
Accounts receivable, net
Total
Repayments of Other Short-term Debt
Net repayments of other short-term borrowings
Net borrowings from current revolver
Repayments of Lines of Credit
Repayments of Long-term Debt
Repayment of notes payable and other long-term debt
Repayments of Long-term Capital Lease Obligations
Repayment of capital lease obligations
Research and Development Expense
Research and engineering
Restricted Stock Units (RSUs) [Member]
Restricted stock unit awards
Restricted Cash and Cash Equivalents, Current
Restricted cash
Retained Earnings (Accumulated Deficit).
Retained earnings
Retained earnings (accumulated deficit)
Retained Earnings [Member]
Revenue Recognition, Policy [Policy Text Block]
Revenue Recognition
Segment Reporting Information, Intersegment Revenue
Revenue from transaction with other operating segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geographic area
Revenues:
Revenues [Abstract]
Revolving Credit Facility [Member]
Revolver
Products
Sales Revenue, Goods, Net
Revenue, Net
Total revenues
Revenues
Sales [Member]
Revenues
Sales Revenue, Services, Net
Services
Scenario, Unspecified [Domain]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of computations of basic and diluted earnings per share
Schedule of Inventory, Current [Table Text Block]
Schedule of inventories
Summary of estimated fair value of assets acquired and liabilities assumed at the date of acquisition
Schedule of Purchase Price Allocation [Table Text Block]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block]
Schedule of cash proceeds from and the aggregate intrinsic value of stock options exercised
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Long-term Debt Instruments [Table Text Block]
Schedule of long-term debt
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 Arrangements by Share-based Payment Award [Table]
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of consolidated financial information by segment
Schedule of Property, Plant and Equipment [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Schedule of accounts receivable
Segment Reporting Information [Line Items]
Consolidated financial information by segment
Segment Disclosure
Segment Disclosure
Segment Reporting Disclosure [Text Block]
Segment [Domain]
Segment, Geographical [Domain]
Selling, General and Administrative Expense
Selling, general and administrative expenses
Series of Individually Immaterial Business Acquisitions
Series of Individually Immaterial Business Acquisitions [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]
Additional disclosures
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value
Fair value of shares vested
Grant date fair value of shares vested
Share-based Compensation
Stock compensation expense
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards
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 fully vested common stock granted
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Shares vested
Share Price
Common stock price per share (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value
Aggregate intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Number of shares available for future grants
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Number of shares authorized for grants
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Stock options outstanding (in shares)
Award Type [Domain]
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Equity-based Compensation
Shares Paid for Tax Withholding for Share Based Compensation
Shares withheld by company for employees' tax obligations
Shares, Outstanding
Balance (in shares)
Balance (in shares)
Statement [Table]
Scenario [Axis]
Statement
Statement [Line Items]
Consolidated Statements of Stockholders' Equity
Consolidated Statements of Cash Flows
Business Segments [Axis]
Equity Components [Axis]
Consolidated Balance Sheets
Consolidated Statements of Comprehensive Income
Geographical [Axis]
Stock Issued During Period, Shares, Period Increase (Decrease)
Stock Options [Member]
Stock option awards
Stock Issued During Period, Value, Stock Options Exercised
Exercise of stock options
Stock Issued During Period, Value, New Issues
Issuance of common stock
Stock Issued During Period, Value, Conversion of Convertible Securities
Issuance of common stock upon conversion of class A & B preferred stock
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Stock compensation (in shares)
Stock Issued During Period, Shares, New Issues
Issuance of common stock, (in shares)
Number of shares of common stock sold
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Exercise of stock options (in shares)
Stock Issued During Period, Shares, Conversion of Convertible Securities
Issuance of common stock upon conversion of class A & B preferred stock, (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Net settlement on vesting of restricted stock units (in shares)
Equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Stockholders' Equity, Other
Other
Total equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Balance
Balance
Total Mistras Group, Inc. stockholders' equity
Stockholders' Equity Attributable to Parent
Capitalization
Capitalization
Stockholders' Equity Note Disclosure [Text Block]
Stockholders' Equity, Period Increase (Decrease)
Subsequent Event
Subsequent Events [Text Block]
Subsequent Event
Subsequent Event Type [Domain]
Subsequent Event [Line Items]
Subsequent event
Subsequent Event Type [Axis]
Subsequent Event [Table]
Subsequent Event [Member]
Subsequent Event
Supplemental Cash Flow Information [Abstract]
Supplemental disclosure of cash paid
Title of Individual with Relationship to Entity [Domain]
Unrealized Gain (Loss) on Derivatives
Interest rate swap
Use of Estimates, Policy [Policy Text Block]
Use of Estimates
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Denominator:
Weighted average common shares outstanding:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Denominator:
Weighted Average Number of Shares Outstanding, Basic
Basic (in shares)
Weighted average common shares outstanding
Weighted Average Number of Shares Outstanding, Diluted
Diluted (in shares)
Weighted average common shares outstanding, diluted
Write off of Deferred Debt Issuance Cost
Loss on extinguishment of long-term debt
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest
Foreign currency translation adjustments