Cover [Abstract] Statement [Table] Statement [Line Items] Statement Document Type Document Annual Report Document Period End Date Document Transition Report Securities Act File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Public Float Entity Common Stock, Shares Outstanding Entity Central Index Key Document Fiscal Year Focus Document Fiscal Period Focus Current Fiscal Year End Date Amendment Flag ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Auditor Name Auditor Firm ID Auditor Location CONSOLIDATED BALANCE SHEETS Assets [Abstract] ASSETS Assets, Current [Abstract] CURRENT ASSETS: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Billed Contracts Receivable Billed accounts receivable, less allowance for credit losses of $15,286 and $11,926, respectively Unbilled Contracts Receivable Unbilled accounts receivable, less allowance for credit losses of $1,475 and $850, respectively Nontrade Receivables, Current Other receivables, less allowance for credit losses of $553 and $522, respectively Inventory, Net Inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other Contract with Customer, Asset, after Allowance for Credit Loss, Current Costs and estimated earnings in excess of billings, less allowance for credit losses of $271 and $79, respectively Costs and estimated earnings in excess of billings, less allowance for credit losses, current Assets, Current Total current assets Property, Plant and Equipment, Net PROPERTY AND EQUIPMENT, NET Property and equipment, net Operating Lease, Right-of-Use Asset LEASE RIGHT-OF-USE ASSET Operating lease right-of-use assets Goodwill Balance at end of period Balance at beginning of year GOODWILL Intangible Assets, Net (Excluding Goodwill) IDENTIFIABLE INTANGIBLE ASSETS, NET Deferred Income Tax Assets, Net Deferred tax assets DEFERRED TAX ASSETS Other Assets, Noncurrent OTHER NONCURRENT ASSETS Assets Total assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] CURRENT LIABILITIES: Long-Term Debt, Current Maturities Less-current portion Current maturities of long-term debt Accounts Payable, Current Accounts payable Employee-related Liabilities, Current Accrued compensation and benefits Contract with Customer, Liability, Current Billings in excess of costs and estimated earnings and deferred revenue Self Insurance Reserve, Current Accrued self-insurance Other Liabilities, Current Other current liabilities Total other current liabilities Liabilities, Current Total current liabilities Long-Term Debt, Excluding Current Maturities LONG-TERM DEBT Total long-term portion of debt, net Operating Lease, Liability, Noncurrent LEASE LIABILITIES Long-term operating lease liabilities Deferred Income Tax Liabilities, Net Deferred tax liabilities DEFERRED TAX LIABILITIES Other Liabilities, Noncurrent OTHER LONG-TERM LIABILITIES Liabilities Total liabilities Commitments and Contingencies. COMMITMENTS AND CONTINGENCIES Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] STOCKHOLDERS' EQUITY: Preferred Stock, Value, Issued Preferred stock, $.01 par, 5,000,000 shares authorized, none issued and outstanding Common Stock, Value, Issued Common stock, $.01 par, 102,969,912 shares authorized, 41,123,365 and 41,123,365 shares issued, respectively Treasury Stock, Value Treasury stock, at cost, 5,562,453 and 5,438,625 shares, respectively Additional Paid in Capital, Common Stock Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Equity, Attributable to Parent BALANCE BALANCE Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Accounts Receivable, Allowance for Credit Loss, Current Billed accounts receivable, allowance for credit losses (in dollars) The amount of allowance for credit losses on unbilled receivable. Unbilled Accounts Receivable, Allowance for Credit Loss Unbilled accounts receivable, allowance for credit losses (in dollars) Allowance for Credit Loss, Receivable, Other, Current Other receivables, allowance for credit losses (in dollars) Contract with Customer, Asset, Allowance for Credit Loss, Current Costs and estimated earnings in excess of billings, allowance for credit losses (in dollars) Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued BALANCE (in shares) BALANCE (in shares) Common stock, shares issued Treasury Stock, Common, Shares BALANCE (in shares) BALANCE (in shares) Treasury stock, shares Income Statement [Abstract] Revenues REVENUE Revenue Cost of Revenue COST OF SERVICES Cost of services Gross Profit Gross profit Gross profit Selling, General and Administrative Expense SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Selling, general and administrative expenses Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property GAIN ON SALE OF ASSETS Gain on sale of assets Operating Income (Loss) Operating income Operating income Nonoperating Income (Expense) [Abstract] OTHER INCOME (EXPENSE): Investment Income, Interest Interest income Interest Expense, Nonoperating Interest expense Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Changes in the fair value of contingent earn-out obligations Changes in the fair value of contingent earn-out obligations Other Nonoperating Income (Expense) Other Nonoperating Income (Expense) Other income (expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest INCOME BEFORE INCOME TAXES Income Tax Expense (Benefit) Provision (benefit) for income taxes PROVISION (BENEFIT) FOR INCOME TAXES NET INCOME Earnings Per Share [Abstract] INCOME PER SHARE: Earnings Per Share, Basic Basic Earnings Per Share, Diluted Diluted Weighted Average Number of Shares Outstanding, Diluted [Abstract] SHARES USED IN COMPUTING INCOME PER SHARE: Weighted Average Number of Shares Outstanding, Basic Basic Shares used in computing earnings per share-basic Weighted Average Number of Shares Outstanding, Diluted Diluted Shares used in computing earnings per share-diluted CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Common Stock Treasury Stock, Common [Member] Treasury Stock Additional Paid-in Capital [Member] Additional Paid-In Capital Retained Earnings [Member] Retained Earnings Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Shares Granted or Issued, Share-Based Payment Arrangement [Abstract] Issuance of Stock: Stock Issued During Period, Value, Stock Options Exercised Issuance of shares for options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Issuance of shares for options exercised (in shares) Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Issuance of restricted stock & performance stock Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Issuance of restricted stock & performance stock (in shares) Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Shares received in lieu of tax withholding on vested stock Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Shares received in lieu of tax withholding on vested stock (in shares) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation Dividends, Common Stock, Cash Dividends Treasury Stock, Value, Acquired, Cost Method Share repurchase Treasury Stock, Shares, Acquired Share repurchase (in shares) Share repurchase (in shares) Common Stock, Dividends, Per Share, Declared Dividends (per share) CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: 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- Amortization of Intangible Assets Amortization of identifiable intangible assets Depreciation Depreciation expense Amount of change in right-of-use assets. Change in Right of Use Assets Change in right-of-use assets Accounts Receivable, Credit Loss Expense (Reversal) Bad debt expense Bad debt expense Deferred Income Tax Expense (Benefit) Deferred tax provision (benefit) Amortization of Debt Issuance Costs Amortization of debt financing costs Gain (Loss) on Disposition of Property Plant Equipment Gain on sale of assets Share-Based Payment Arrangement, Noncash Expense Stock-based compensation Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities, net of effects of acquisitions and divestitures- Increase (Decrease) in Operating Assets [Abstract] (Increase) decrease in- Increase (Decrease) in Accounts Receivable Receivables, net Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Contract with Customer, Asset Costs and estimated earnings in excess of billings and unbilled accounts receivable Increase (Decrease) in Other Operating Assets Other noncurrent assets Increase (Decrease) in Operating Liabilities [Abstract] Increase (decrease) in- Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and other current liabilities Increase (Decrease) in Contract with Customer, Liability Billings in excess of costs and estimated earnings and deferred revenue Increase (Decrease) in Other Operating Liabilities Other long-term liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Proceeds from Sale of Property, Plant, and Equipment Proceeds from sales of property and equipment Payments to Acquire Businesses, Net of Cash Acquired Cash paid for acquisitions, net of cash acquired Payments to Acquire Investments Payments for investments Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from Long-Term Lines of Credit Proceeds from revolving credit facility Repayments of Long-Term Lines of Credit Payments on revolving credit facility Repayments of Senior Debt Payments on term loan Proceeds from Other Debt Proceeds from other debt Repayments of Other Debt Payments on other debt Finance Lease, Principal Payments Payments on finance lease liabilities Payments of Financing Costs Debt financing costs Financing and professional cost Payments of Ordinary Dividends, Common Stock Payments of dividends to stockholders Payments for Repurchase of Common Stock Share repurchases Share repurchase Payment, Tax Withholding, Share-Based Payment Arrangement Shares received in lieu of tax withholding Proceeds from Stock Options Exercised Proceeds from exercise of options Deferred acquisition payments. Deferred Acquisition Payments Deferred acquisition payments Payment for Contingent Consideration Liability, Financing Activities Payments for contingent consideration arrangements Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents CASH AND CASH EQUIVALENTS, end of period CASH AND CASH EQUIVALENTS, beginning of period Business and Organization Nature of Operations [Text Block] Business and Organization Summary of Significant Accounting Policies and Estimates Basis of Presentation and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies and Estimates Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Revenue from Contracts with Customers Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Measurements Acquisitions Business Combination Disclosure [Text Block] Acquisitions Goodwill and Identifiable Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Identifiable Intangible Assets, Net Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Property and Equipment