Cash and cash equivalents Costs and estimated earnings in excess of billings on uncompleted contracts Inventories Total current assets Property and equipment, net of accumulated depreciation of $330,070 and $344,030 Other assets, net Other intangible assets, net of accumulated amortization of $57,215 and $62,121 Total assets Notes payable Total current liabilities Deferred income taxes Total liabilities Common stock, $.00001 par value, 300,000,000 shares authorized, 199,317,237 and 211,977,811 shares issued and 196,928,203 and 209,378,308 shares outstanding Accumulated deficit Accumulated other comprehensive income Total stockholders' equity Noncontrolling interest Total liabilities and equity ASSETS Current Assets: LIABILITIES AND EQUITY Current Liabilities: Equity: Earnings per share attributable to common stock: Document and Company Information [Abstract] Document and Company Information [Abstract] Document and Company Information. Goodwill and Other Intangible Assets [Abstract] Goodwill and Other Intangible Assets [Abstract] GOODWILL AND OTHER INTANGIBLE ASSETS. Segment Information [Abstract] Segment Information [Abstract] SEGMENT INFORMATION. Commitments and Contingencies [Abstract] Commitments and Contingencies [Abstract] COMMITMENTS AND CONTINGENCIES. BUSINESS AND ORGANIZATION GOODWILL AND OTHER INTANGIBLE ASSETS DEBT OBLIGATIONS EQUITY SEGMENT INFORMATION COMMITMENTS AND CONTINGENCIES Cash Flows from Financing Activities: Cash Flows from Investing Activities: Cash Flows from Operating Activities: Changes in operating assets and liabilities, net of non-cash transactions - (Increase) decrease in - Increase (decrease) in - Gross profit Selling, general and administrative expenses Operating income Interest expense Interest income Other income (expense), net Income before income taxes Provision for income taxes Net income attributable to common stock Net income attributable to common stock Net income attributable to common stock Weighted average basic shares outstanding Weighted average basic shares outstanding Weighted average diluted shares outstanding Depreciation Amortization of debt issuance costs Amortization of deferred revenue Loss on sale of property and equipment Provision for doubtful accounts Deferred income tax provision (benefit) Non-cash stock-based compensation Tax impact of stock-based equity awards Accounts and notes receivable Inventories Billings in excess of costs and estimated earnings on uncompleted contracts Net cash provided by operating activities Proceeds from sale of property and equipment Additions of property and equipment Net cash used in investing activities Proceeds from other long-term debt Payments on other long-term debt Tax impact of stock-based equity awards Net cash provided by (used in) financing activities Net increase (decrease) in cash and cash equivalents Effect of foreign exchange rate changes on cash and cash equivalents Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Treasury stock, common shares Allowances on accounts receivable Accumulated depreciation on property and equipment Accumulated amortization on other intangible assets Total equity Net income Cash and cash equivalents Inventories Property and equipment, net of accumulated depreciation of $330,070 and $383,714 Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Other intangible assets, net of accumulated amortization of $57,215 and $96,167 Notes payable Accounts payable and accrued expenses Accounts payable and accrued expenses Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Retained earnings (accumulated deficit) Accounts receivable, net of allowances of $8,802 and $8,119 Accounts Receivable, Net, Current, Total Limited vote common stock, shares outstanding Limited vote common stock, shares outstanding Limited vote common stock, shares outstanding. Limited vote common stock, shares issued Limited vote common stock, shares issued Limited vote common stock, shares issued. Limited vote common stock, shares authorized Limited vote common stock, shares authorized Limited vote common stock, shares authorized. Limited vote common stock, par value Limited vote common stock, par value Limited vote common stock, par value. Basic earnings per share Diluted earnings per share Net income attributable to common stock Less: Net income attributable to noncontrolling interest Less: Net income attributable to noncontrolling interest Net income Provision for income taxes Income from continuing operations before income taxes Other income (expense),net Interest expense Selling, general and administrative expenses Depreciation Loss on sale of property and equipment Supplemental disclosure of cash flow information: Income tax refunds Cash (paid) received during the year for - Cash paid received during the period for abstract Cash (paid) received during the period for. Non-cash stock-based compensation Adjustments to reconcile net income to net cash provided by operating activities - Inventories Proceeds from sale of property and equipment Additions of property and equipment Effect of foreign exchange rate changes on cash and cash equivalents Amortization of intangible assets Amortization of intangible assets Convertible subordinated notes, net of discount of $21,475 and $17,142 Billings in excess of costs and estimated earnings on uncompleted contracts Non-cash interest expense Other, net Cash paid for acquisitions, net of cash acquired Cash paid for acquisitions, net of cash acquired Discount on convertible subordinated notes Discount on convertible subordinated notes Discount on convertible subordinated notes which when netted against the principal amount of the notes outstanding results in the carrying value of the convertible subordinated notes presented on the face of the balance sheet. Interest paid Income tax paid Cost of services (including depreciation) Cost of services (including depreciation) Prepaid expenses and other current assets Goodwill Goodwill, Beginning Balance Goodwill, Ending Balance Insurance and other non-current liabilities Limited Vote Common Stock, $.00001 par value, 3,345,333 shares authorized, 662,293 shares issued and outstanding Limited Vote Common Stock, $.00001 par value, 3,345,333 shares authorized, 662,293 and 662,293 shares issued and outstanding, respectively Dollar value of issued limited vote common stock at par value. Note: elements for number of limited vote common shares, par value and other disclosure concepts are in another section within stockholders' equity. Additional paid-in capital Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Costs and estimated earnings in excess of billings on uncompleted contracts Prepaid expenses and other current assets Increase (Decrease) in Prepaid, Deferred Expense and Other Assets, Total Accounts payable and accrued expenses and other non-current liabilities Gross profit Operating income Total current assets Billings in excess of costs and estimated earnings on uncompleted contracts Total current liabilities Treasury stock, 2,389,034 and XXXXX common shares, at cost Treasury Stock, Value, Beginning Balance Treasury Stock, Value, Ending Balance Total stockholders' equity Stockholders' Equity Attributable to Parent, Beginning Balance Stockholders' Equity Attributable to Parent, Ending Balance Other, net Exercise of stock options PER SHARE INFORMATION Limited Vote Common Stock Value Discount Against Convertible Subordinated Notes Revenues Sales Revenue, Services, Net, Total Sales Revenue, Services, Net Earnings per share attributable to common stock: Insurance and other non-current liabilities Other Liabilities, Noncurrent Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest Goodwill Goodwill Treasury stock, 2,389,034 and XXXXX common shares, at cost Treasury Stock, Value Prepaid expenses and other current assets Other Assets, Current Exercise of stock options Proceeds from Stock Options Exercised Weighted average diluted shares outstanding Weighted Average Number of Shares Outstanding Net increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Provision for insurance receivable Provision for Other Losses Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] CHANGES IN ACCOUNTING PRINCIPLES AND NEW ACCOUNTING PRONOUNCEMENTS Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Goodwill and Intangible Assets Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Earnings Per Share [Text Block] Debt Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Segment Reporting Disclosure [Text Block] Commitments and Contingencies Disclosure [Text Block] Accounts Receivable, Net, Current Property, Plant and Equipment, Net Intangible Assets, Net (Excluding Goodwill) Convertible Subordinated Debt, Noncurrent Common Stock, Value, Issued, Total Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued Gain (Loss) on Sale of Property Plant Equipment Amortization of Intangible Assets Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Cash paid for developed technology Payments to Acquire Other Productive Assets Cash paid for developed technology Net Cash Provided by (Used in) Financing Activities Commitments and Contingencies Commitments and Contingencies Document and Company Information [Abstract] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Statement [Table] Statement [Line Items] Assets [Abstract] Assets, Current [Abstract] Cash and Cash Equivalents, at Carrying Value Costs in Excess of Billings on Uncompleted Contracts or Programs Expected to be Collected within One Year Inventory, Net Assets, Current Other Assets, Noncurrent Assets Liabilities and Stockholders' Equity [Abstract] Liabilities, Current [Abstract] Notes Payable, Current Accounts Payable and Accrued Liabilities, Current Billings in Excess of Cost Liabilities, Current Deferred Tax Liabilities, Noncurrent Liabilities Stockholders' Equity Attributable to Parent [Abstract] Additional Paid in Capital, Common Stock Retained Earnings(Accumulated Deficit) Accumulated Other Comprehensive Income (Loss), Net of Tax Stockholders' Equity Attributable to Parent Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Liabilities and Stockholders' Equity Finite-Lived Intangible Assets, Accumulated Amortization Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Treasury Stock, Shares Cost of Services Gross Profit Selling, General and Administrative Expense Operating Income (Loss) Interest Expense Investment Income, Interest Other Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income Tax Expense (Benefit) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest Net Income (Loss) Available to Common Stockholders, Basic Per Share Information [Abstract] Earnings Per Share, Basic Earnings Per Share, Diluted Weighted Average Number of Shares Outstanding, Basic Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Amortization of Debt Discount (Premium) Amortization of Financing Costs Recognition of Deferred Revenue Provision for Doubtful Accounts Deferred Income Tax Expense (Benefit) Share-based Compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Increase (Decrease) in Operating Capital [Abstract] Increase (Decrease) in Operating Assets [Abstract] Increase (Decrease) in Accounts and Notes Receivable Increase (Decrease) in Unbilled Receivables Increase (Decrease) in Inventories Increase (Decrease) in Prepaid, Deferred Expense and Other Assets Increase (Decrease) in Operating Liabilities [Abstract] Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Increase (Decrease) in Billing in Excess of Cost of Earnings Increase (Decrease) in Other Operating Liabilities Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from Sale of Property, Plant, and Equipment Payments to Acquire Property, Plant, and Equipment Payments to Acquire Businesses, Net of Cash Acquired Net Cash Provided by (Used in) Investing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from Issuance of Other Long-term Debt Repayments of Other Long-term Debt Excess Tax Benefit from Share-based Compensation, Financing Activities Effect of Exchange Rate on Cash and Cash Equivalents Supplemental Cash Flow Information [Abstract] Interest Paid Income Taxes Paid Proceeds from Income Tax Refunds Treasury stock, 2,389,034 and 2,599,503 common shares, at cost Interest expense Additions of property and equipment Cash paid for acquisitions, net of cash acquired Cash paid for developed technology Payments on other long-term debt Beginning Balance Ending Balance Balance Sheets Balance Sheets [Abstract] Statements of Operations [Abstract] Changes in Accounting Principles and New Accounting Pronouncements [Abstract] Statements of Cash Flows [Abstract] Loss on early extinguishment of debt, net Gains (Losses) on Extinguishment of Debt, Total Gains (Losses) on Extinguishment of Debt Repayments of convertible subordinated notes Repayments of Subordinated Debt, Total Repayments of Subordinated Debt ACQUISITIONS Schedule of Business Acquisitions, by Acquisition [Text Block] Acquisitions [Abstract] Loss on early extinguishment of debt Repayments of convertible subordinated notes Business and Organization [Abstract] Treasury stock, 2,389,034 and XXXXX common shares, at cost Basic earnings per share attributable to common stock: Diluted earnings per share attributable to common stock: Income from continuing operations Income (Loss) from Continuing Operations, Per Diluted Share Income from discontinued operation Income from discontinued operation Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Income from continuing operations Income (Loss) from Continuing Operations, Per Basic Share Income from continuing operations Income from discontinued operation Income from discontinued operation Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Income from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, Total Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Discontinued operation: Income from discontinued operation (net of income tax expense of $1,345, none and none) Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income tax expense Discontinued Operation, Tax Effect of Discontinued Operation, Total Discontinued Operation, Tax Effect of Discontinued Operation Deferred Income Tax Expense (Benefit), Total Gain on sale of discontinued operation Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Total Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Purchases of short-term investments Payments to Acquire Short-term Investments Proceeds from the sale of short-term investments Proceeds from Sale of Short-term Investments Issuances of stock Proceeds from Issuance of Common Stock Statements of Stockholders Equity [Abstract] Foreign currency translation adjustment Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax Adoption of FIN No. 48 (A Component of ASC 740) Cumulative Effect of Initial Adoption of FIN 48 InfraSource acquisition Stock Issued During Period Value Infra Source Acquisition Stock Issued During Period Value InfraSource Acquisition. Acquisitions Stock Issued During Period, Value, Acquisitions Acquisitions, Shares Stock Issued During Period, Shares, Acquisitions Restricted stock activity Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Restricted stock activity, Shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock options exercised Stock Issued During Period, Value, Stock Options Exercised Stock options exercised, Shares Stock Issued During Period, Shares, Stock Options Exercised Income tax benefit from long-term incentive plans Adjustments to Additional Paid in Capital, Tax Effect from Share-based Compensation Beginning Balance, Shares Ending Balance, Shares Shares, Issued Other Stockholders' Equity, Other Adoption of authoritative guidance on convertible debt Cumulative Effect of Initial Adoption of New Accounting Principle Conversion of 4.5% Convertible Subordinated Notes Stock Issued During Period, Value, Conversion of Convertible Securities Conversion of 4.5% Convertible Subordinated Notes, Shares Stock Issued During Period, Shares, Conversion of Convertible Securities Loss (gain) on early extinguishment of debt Proceeds from the sale of short-term investments Statement, Equity Components [Axis] Equity Component [Domain] Total Stockholders' Equity Common Stock Additional Paid-in Capital Treasury Stock Retained Earnings (Accumulated Deficit) Accumulated Other Comprehensive Income Noncontrolling Interest Discontinued operation: Income Loss From Discontinued Operations Net Of Tax [Abstract] Limited Vote Common Stock Limited Vote Common Stock Member. Purchases of short-term investments Cash paid for developed technology Exchange of Limited Vote Common Stock for common stock Exchange Of Limited Vote Common Stock For Common Stock Exchange Of Limited Vote Common Stock For Common Stock. InfraSource acquisition, Shares Stock Issued During Period Shares Infra Source Acquisition Stock Issued During Period Shares Infra Source Acquisition. Income Taxes [Abstract] Income Tax Disclosure [Text Block] Equity [Abstract] Detail of Certain Balance Sheet Accounts [Abstract] Detail Of Certain Balance Sheet Accounts. DETAIL OF CERTAIN BALANCE SHEET ACCOUNTS Detail Of Certain Balance Sheet Accounts Text Block Detail Of Certain Balance Sheet Accounts. INCOME TAXES Long-Term Incentive Plans [Abstarct] LONG-TERM INCENTIVE PLANS Disclosure of Compensation Related Costs, Share-based Payments [Text Block] dup_1_Related Party Transaction, Due from (to) Related Party, Noncurrent, Total Related Party Transactions [Abstract]