Restructuring and Related Activities [Abstract] Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Statement, Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Capital in Excess of Par Value Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Stock Appreciation Rights (SARs) [Member] Stock Appreciation Rights (SARs) [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Stockholders' Equity Attributable to Parent Balance (shares) Shares, Issued Stock Compensation (shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock Compensation Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Restricted Stock Units (shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Restricted Stock Units Stock Issued During Period, Value, Restricted Stock Award, Gross Stock Issued for SARs, Shares Stock Issued During Period, Shares, New Issues Stock Issued for SARs Stock Issued During Period, Value, New Issues Employee Stock Purchase Plan (shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Employee Stock Purchase Plan Stock Issued During Period, Value, Employee Stock Purchase Plan Federal Income Tax Deducted on Stock Options and SARs Income Tax Effects Allocated Directly to Equity, Employee Stock Options Cash Dividend Paid Dividends, Cash Net Income Net Income (Loss) Attributable to Parent Foreign Currency Translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Interest Rate Swap, Net of $14,602 Income Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Balance Balance (shares) Statement of Financial Position [Abstract] Accounts Receivable, Allowance for Doubtful Accounts Allowance for Doubtful Accounts Receivable, Current Common Stock, Par Value (usd per share) Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized (shares) Common Stock, Shares Authorized Common Stock, Shares Issued (shares) Common Stock, Shares, Issued Statement of Comprehensive Income [Abstract] Interest rate swap, income tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Segment Reporting [Abstract] Operations and assets by segment Schedule of Revenue and Assets by Major Customers by Reporting Segments [Table Text Block] Schedule of revenue and assets by major customers by reporting segments. Share-based Compensation [Abstract] Share based compensation expense and related income tax benefits Employee Service Share-based Compensation, Aggregate Disclosures [Abstract] Compensation Expense Allocated Share-based Compensation Expense Income tax benefits Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Product Warranties Disclosures [Abstract] Movement in Standard Product Warranty Accrual [Roll Forward] Movement in Standard Product Warranty Accrual [Roll Forward] Opening Balance Product Warranty Accrual Warranty costs incurred Product Warranty Expense Additions charged to income Product Warranty Additions Charged to Income Product warranty additions charged to income. Closing Balance Stock-based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Changes in the warranty reserves Schedule of Product Warranty Liability [Table Text Block] Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Aquilex [Member] Aquilex [Member] Aquilex [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Current Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Property and Equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Intangible Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Goodwill Goodwill Other Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Total Assets Acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Current Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Net Assets Acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Zalk Steel [Member] Zalk Steel [Member] Zalk Steel [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Acquisition, Pro Forma Information [Abstract] Net Sales Business Acquisition, Pro Forma Revenue Net Income Business Acquisition, Pro Forma Net Income (Loss) Earnings Per Common Share Earnings Per Share [Abstract] Basic earnings per share (usd per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Diluted Earnings Per Share (usd per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Other Comprehensive Income (Loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized Translation Gains (Losses) Interest Rate Swap, Net of Income Tax of $7,301, $7,301, $14,602 and $14,602, respectively Other Comprehensive Income (Loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Stock Appreciation Rights SARS and Stock Option [Member] Stock Appreciation Rights SARS and Stock Option [Member] Stock appreciation rights SARs and stock option. Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward] Outstanding as of February 28, 2014 Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Option Outstanding Number Share based compensation arrangement by share based payment award options and other than option outstanding number. Granted (shares) Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Option Grants in Period Share based compensation arrangement by share based payment award options and other than option grants in period. Exercised (shares) Stock Issued During Period Shares Stock Options and Other than Option Exercised Stock issued during period shares stock options and other than option exercised. Forfeited (shares) Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Option Forfeitures In Period Share based compensation arrangement by share based payment award options and other than option forfeitures in period. Outstanding as of August 31, 2014 Exercisable as of August 31, 2014 Share Based Compensation Arrangement by Share Based Payment Award Option and Other than Option Exercisable Number Share based compensation arrangement by share based payment award option and other than option exercisable number. Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward] Outstanding as of February 28, 2014 Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Option Outstanding Weighted Average Exercise Price Share based compensation arrangement by share based payment award options and other than option outstanding weighted average exercise price. Granted, Weighted Average Exercise Price (usd per share) Share Based Compensation Arrangements by Share Based Payment Award Options and Other than Option Grants in Period Weighted Average Exercise Price Share based compensation arrangements by share based payment award options and other than option grants in period weighted average exercise price. Exercised, Weighted Average Exercise Price (usd per share) Share Based Compensation Arrangements by Share Based Payment Award Options and Other than Option Exercises in Period Weighted Average Exercise Price Share based compensation arrangements by share based payment award options and other than option exercises in period weighted average exercise price. Forfeited, Weighted Average Exercise Price (usd per share) Share Based Compensation Arrangements by Share Based Payment Award Options and Other than Option Forfeitures in Period Weighted Average Exercise Price Share based compensation arrangements by share based payment award options and other than option forfeitures in period weighted average exercise price. Outstanding as of August 31, 2014 Exercisable as of August 31, 2014 Share Based Compensation Arrangement by Share Based Payment Award Option and Other than Option Exercisable Weighted Average Exercise Price Share based compensation arrangement by share based payment award option and other than option exercisable weighted average exercise price. Weighted average fair value of options and SARs granted during the period ended August 31, 2014 Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Option Grants in Period Weighted Average Grant Date Fair Value Share based compensation arrangement by share based payment award options and other than option grants in period weighted average grant date fair value. Statement of Cash Flows [Abstract] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Cash Flows From Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] 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] Provision For Doubtful Accounts Provision for Doubtful Accounts Amortization and Depreciation Depreciation, Depletion and Amortization, Nonproduction Deferred Income Tax Expense Deferred Income Tax Expense (Benefit) Property, Plant and Equipment, Disposals Gain (Loss) on Disposition of Assets Net Loss (Gain) On Insurance Settlement or On Sale of Property, Plant & Equipment Gain (Loss) on Disposition of Property Plant Equipment Amortization of Deferred Borrowing Costs Amortization of Financing Costs Share Based Compensation Expense Share-based Compensation Effects of Changes In Assets & Liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts Receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid Expenses and Other Increase (Decrease) in Prepaid Expense and Other Assets Other Assets Increase (Decrease) in Other Operating Assets Net Change In Billings Related To Costs and Estimated Earnings On Uncompleted Contracts Increase (Decrease) in Billing in Excess of Cost of Earnings Accounts Payable Increase (Decrease) in Accounts Payable Other Accrued Liabilities and Income Taxes Payable Increase (Decrease) in Other Operating Liabilities Net Cash Provided By Operating Activities Net Cash Provided by (Used in) Operating Activities Cash Flows Used For Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds From Sale Or Insurance Settlement of Property, Plant, and Equipment Proceeds from Sale of Property, Plant, and Equipment Purchase of Property, Plant and Equipment Payments to Acquire Property, Plant, and Equipment Acquisition of Subsidiaries, Net of Cash Acquired Payments to Acquire Businesses, Net of Cash Acquired Net Cash From Investing Activities Net Cash Provided by (Used in) Investing Activities Cash Flows From Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Excess Tax Benefits From Stock Options and Stock Appreciation Rights Excess Tax Benefit from Share-based Compensation, Financing Activities Proceeds from Revolving Loan Proceeds from Lines of Credit Payments on Revolving Loan Repayments of Lines of Credit Proceeds on Long Term Debt Proceeds from Issuance of Long-term Debt Payments on Long Term Debt Repayments of Long-term Debt Debt Acquisition Costs Payments of Debt Issuance Costs Payments of Dividends Payments of Dividends Net Cash Used In Financing Activities Net Cash Provided by (Used in) Financing Activities Effect of Exchange Rate Changes on Cash Effect of Exchange Rate on Cash and Cash Equivalents Net Increase (Decrease) In Cash & Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash & Cash Equivalents At Beginning of Period Cash and Cash Equivalents, at Carrying Value Cash & Cash Equivalents At End of Period Supplemental Disclosures Supplemental Cash Flow Information [Abstract] Cash Paid For Interest Interest Paid Cash Paid For Income Taxes Income Taxes Paid Restricted Stock Unit Awards Non-Vested Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Stock Appreciation Rights and Option Awards Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block] Share-based compensation expense and related income tax Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Segments Segment Reporting Disclosure [Text Block] Restricted Stock [Member] Restricted Stock [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Employee stock purchase plan. Share Based Compensation (Textual) [Abstract] Share Based Compensation (Textual) [Abstract] Share based compensation. Number Of Share-Based Compensation Plans Number Of Share-Based Compensation Plans Number Of Share-Based Compensation Plans Shares authorized (shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share for future issuance (shares) Common Stock, Capital Shares Reserved for Future Issuance Vesting ratably term Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Term for the contract Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Outstanding Average contractual term Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Options and Other than Options Outstanding Weighted Average Remaining Contractual Terms Share based compensation arrangement by share based payment award equity instruments options and other than options outstanding weighted average remaining contractual terms. Outstanding Aggregate intrinsic value Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Options Outstanding Intrinsic Value Share based compensation arrangement by share based payment award options and other than options outstanding intrinsic value. Average remaining contractual term Share Based Compensation Arrangement by Share Based Payment Award Options Other than Options Exercisable Weighted Average Remaining Contractual Term One Share based compensation arrangement by share based payment award options other than options exercisable weighted average remaining contractual term one. Aggregate remaining intrinsic value Share Based Compensation Arrangement by Share Based Payment Award Options and Other than Options Exercisable Intrinsic Value One Share based compensation arrangement by share based payment award options and other than options exercisable intrinsic value1. Term of offering under stock purchase plan Term of Offering under Stock Purchase Plan Term of offering under stock purchase plan. Granted option lower than Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Restricted common stock under plan Maximum Value of Common Stock Participants Have Rights to Purchase Maximum value of common stock participants have rights to purchase. Common stock purchased during period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee Unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Share-based Compensation Arrangement, By Share-based Payment Award, Common Shares Estimated To Be Issued Share-based Compensation Arrangement, By Share-based Payment Award, Common Shares Estimated To Be Issued Share-based Compensation Arrangement, By Share-based Payment Award, Common Shares Estimated To Be Issued Warranty Reserves Product Warranty Disclosure [Text Block] Computation of basic and diluted earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-Vested Balance as of February 28, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Non-Vested Balance as of August 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Non-Vested Balance as of February 28, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted, Weighted Average Grant Date Fair Value (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested, Weighted Average Grant Date Fair Value (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited, Weighted Average Grant Date Fair Value (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Non-Vested Balance as of August 31, 2014 Computation of basic and diluted earnings per share Schedule of Earnings Per Share Basic and Diluted [Abstract] -- None. No documentation exists for this element. -- Numerator: Numerator [Abstract] -- None. No documentation exists for this element. -- Net income for basic and diluted earnings per common share Denominator: Denominator [Abstract] -- None. No documentation exists for this element. -- Denominator for basic earnings per common share-weighted average shares (shares) Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Employee and Director stock awards (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Denominator for diluted earnings per common share (shares) Weighted Average Number of Shares Outstanding, Diluted Earnings per share basic and diluted: Basic and Diluted Earning Per Share [Abstract] -- None. No documentation exists for this element. -- Basic earnings per Common share (usd per share) Earnings Per Share, Basic Diluted earnings per common share (usd per share) Earnings Per Share, Diluted Earnings Per Share Earnings Per Share [Text Block] Restructuring and Related Activities Disclosure [Text Block] Restructuring and Related Activities Disclosure [Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Summary of Acquisitions Business Acquisition, Pro Forma Information [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Business Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Electrical and Industrial Products [Member] Energy [Member] Energy Galvanizing Services [Member] Galvanizing Services [Member] Galvanizing services Operating Segments [Member] Operating Segments [Member] Corporate [Member] Corporate Segment [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of operating segments Number of Operating Segments Operations and assets by segment Operations and Assets by Segment [Abstract] Operations and assets by segment. Net Sales Revenue, Net Operating Income Operating Income (Loss) General Corporate Expense Other General Expense Interest Expense Interest Expense Other (Income) Expense, Net Other Nonrecurring (Income) Expense Total expenses Corporate Income Expense Net Corporate (income) expense net. Income Before Income Taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Assets Assets Restructuring Reserve Restructuring Reserve Restructuring Charges Restructuring Charges Assets Assets [Abstract] Current Assets: Assets, Current [Abstract] Cash and Cash Equivalents Accounts Receivable (Net of Allowance for Doubtful Accounts of $1,600,753 as of August 31, 2014 and $1,744,321 as of February 28, 2014) Accounts Receivable, Net, Current Inventories: Inventory, Net [Abstract] Raw Material Inventory, Raw Materials, Gross Work-In-Process Inventory, Work in Process, Gross Finished Goods Inventory, Finished Goods, Gross Costs and Estimated Earnings In Excess of Billings On Uncompleted Contracts Costs in Excess of Billings, Current Deferred Income Taxes Deferred Tax Assets, Net of Valuation Allowance, Current Prepaid Expenses and Other Prepaid Expense and Other Assets Total Current Assets Assets, Current Property, Plant and Equipment, Net Property, Plant and Equipment, Net Intangibles and Other Assets, Net Intangible Assets, Net (Excluding Goodwill) Total Assets Liabilities and Shareholders' Equity Liabilities and Equity [Abstract] Current Liabilities: Liabilities, Current [Abstract] Accounts Payable Accounts Payable, Current Income Tax Payables Accrued Income Taxes, Current Accrued Salaries and Wages Employee-related Liabilities, Current Other Accrued Liabilities Other Liabilities, Current Customer Advance Payment Customer Advances, Current Profit Sharing Deferred Compensation Share-based Arrangements, Liability, Current Long Term Debt Due Within One Year Debt, Current Billings In Excess of Costs and Estimated Earnings On Uncompleted Contracts Billings in Excess of Cost Total Current Liabilities Liabilities, Current Other Liabilities, Noncurrent Other Liabilities, Noncurrent Long-Term Debt Due After One Year Long-term Debt, Excluding Current Maturities Deferred Income Taxes Deferred Tax Liabilities, Net, Noncurrent Shareholders' Equity: Stockholders' Equity Attributable to Parent [Abstract] Common Stock, $1 Par Value, Shares Authorized 100,000,000 (25,668,404 Shares at August 31, 2014 and 25,577,205 Shares at February 28, 2014) Common Stock, Value, Issued Capital In Excess of Par Value Additional Paid in Capital, Common Stock Retained Earnings Retained Earnings (Accumulated Deficit) Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss), Net of Tax Total Shareholders' Equity Total Liabilities and Shareholders' Equity Liabilities and Equity Income Statement [Abstract] Costs and Expenses Operating Costs and Expenses [Abstract] Cost of Sales Cost of Goods Sold Gross Profit Gross Profit Selling, General and Administrative Selling, General and Administrative Expense Operating Income (Loss) Gain (Loss) on Disposition of Property Plant Equipment Other Expense (Income) - net Other Nonoperating Income (Expense) Income Before Income Taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income Tax Expense Income Tax Expense (Benefit) Net Income Basic Earnings Per Share (usd per share) Diluted Earnings Per Share (usd per share) Acquisitions Business Combination Disclosure [Text Block] Document and Entity Information [Abstract] Document and entity information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Acquisitions (Textual) [Abstract] Acquisitions. Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships [Member] Customer Relationships [Member] Customer-Related Intangible Assets [Member] Customer-Related Intangible Assets [Member] Trade Names [Member] Trade Names [Member] Noncompete Agreements [Member] Noncompete Agreements [Member] Developed Technology Rights [Member] Developed Technology Rights [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Business Acquisition Amount of Payment Due at Close under Purchase Agreement Business Acquisition Amount of Payment Due at Close under Purchase Agreement Business Acquisition Amount of Payment Due at Close under Purchase Agreement Additional payment on performance Business Acquisition Amount of Maximum Additional Payment under Purchase Agreement Business acquisition amount of maximum additional payment under purchase agreement. Acquisiton Related Costs Excluded From Pro Form Earnings Acquisiton Related Costs Excluded From Pro Form Earnings Acquisiton Related Costs Excluded From Pro Form Earnings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life