1.0.0.3 false CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands false 1 $ false false shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 $ false false shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 3 $ false false shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 3 Cash flows from operating activities: 1 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 4 Net income 2 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 175882000 175882 false false 2 true true 196760000 196760 false false 3 true true 175929000 175929 false false No definition available. No authoritative reference available. false 5 Adjustments to reconcile net income to net cash provided by operating activities: 2 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 6 Depreciation and amortization 3 us-gaap_OtherDepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 91289000 91289 false false 2 false true 71571000 71571 false false 3 false true 66197000 66197 false false No definition available. No authoritative reference available. false 7 Non-cash compensation expense associated with employee benefit and stock compensation plans 3 us-gaap_ShareBasedCompensation us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 26949000 26949 false false 2 false true 25389000 25389 false false 3 false true 26508000 26508 false false No definition available. No authoritative reference available. false 8 Deferred income tax provision (benefit) 3 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 33030000 33030 false false 2 false true 9343000 9343 false false 3 false true -4903000 -4903 false false No definition available. No authoritative reference available. false 9 Gain on sale of businesses 3 us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -9681000 -9681 false false 2 false true -4070000 -4070 false false 3 false true -6590000 -6590 false false No definition available. No authoritative reference available. false 10 Loss (gain) on sale of property and equipment 3 us-gaap_GainLossOnSaleOfPropertyPlantEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 998000 998 false false 2 false true 1064000 1064 false false 3 false true -1346000 -1346 false false No definition available. No authoritative reference available. false 11 Equity investee earnings 3 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -907000 -907 false false 2 false true -1852000 -1852 false false 3 false true -2451000 -2451 false false No definition available. No authoritative reference available. false 12 Changes in operating assets and liabilities, net of businesses acquired and sold: 3 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 13 Accounts receivable 4 us-gaap_IncreaseDecreaseInAccountsReceivable us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -54937000 -54937 false false 2 false true -11294000 -11294 false false 3 false true -16847000 -16847 false false No definition available. No authoritative reference available. false 14 Unbilled services 4 us-gaap_IncreaseDecreaseInUnbilledReceivables us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 15724000 15724 false false 2 false true -23884000 -23884 false false 3 false true 304000 304 false false No definition available. No authoritative reference available. false 15 Inventory 4 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -12720000 -12720 false false 2 false true -13418000 -13418 false false 3 false true -5336000 -5336 false false No definition available. No authoritative reference available. false 16 Accounts payable 4 us-gaap_IncreaseDecreaseInAccountsPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -5163000 -5163 false false 2 false true 9635000 9635 false false 3 false true -2836000 -2836 false false No definition available. No authoritative reference available. false 17 Accrued liabilities 4 us-gaap_IncreaseDecreaseInAccruedLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -8072000 -8072 false false 2 false true 26952000 26952 false false 3 false true 37153000 37153 false false No definition available. No authoritative reference available. false 18 Unearned revenue 4 us-gaap_IncreaseDecreaseInCustomerAdvances us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 4174000 4174 false false 2 false true 17686000 17686 false false 3 false true 35392000 35392 false false No definition available. No authoritative reference available. false 19 Income taxes payable 4 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -1176000 -1176 false false 2 false true -2702000 -2702 false false 3 false true 9310000 9310 false false No definition available. No authoritative reference available. false 20 Other assets and liabilities, net 4 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 3699000 3699 false false 2 false true -15023000 -15023 false false 3 false true -16954000 -16954 false false No definition available. No authoritative reference available. false 21 Net cash provided by operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 259089000 259089 false false 2 false true 286157000 286157 false false 3 false true 293530000 293530 false false No definition available. No authoritative reference available. true 22 Cash flows from investing activities: 1 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 23 Capital expenditures 2 us-gaap_PaymentsToAcquireProductiveAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -131079000 -131079 false false 2 false true -318928000 -318928 false false 3 false true -201037000 -201037 false false No definition available. No authoritative reference available. false 24 Acquisition of businesses, net of cash acquired 2 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -28096000 -28096 false false 2 false true 0 0 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 25 Proceeds from sale of businesses 2 us-gaap_ProceedsFromDivestitureOfBusinesses us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 10373000 10373 false false 2 false true 4070000 4070 false false 3 false true 35200000 35200 false false No definition available. No authoritative reference available. false 26 Minority equity investment 2 us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true -3136000 -3136 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 27 Other, net 2 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 29000 29 false false 2 false true 385000 385 false false 3 false true 322000 322 false false No definition available. No authoritative reference available. false 28 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -148773000 -148773 false false 2 false true -317609000 -317609 false false 3 false true -165515000 -165515 false false No definition available. No authoritative reference available. true 29 Cash flows from financing activities: 1 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 30 Net (repayments) borrowings under revolving credit facility 2 us-gaap_ProceedsFromRepaymentsOfShortTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -50000000 -50000 false false 2 false true 50000000 50000 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 31 Payment of debt assumed upon acquisition of business 2 us-gaap_RepaymentsOfAssumedDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -5431000 -5431 false false 2 false true 0 0 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 32 Stock issued under employee stock purchase and option plans 2 cvd_StockIssuedUnderEmployeeStockPurchaseAndOptionPlans cvd false debit duration monetary The cash inflow from the amount received from holders exercising their stock options and other equity not otherwise defined... false false false false false false false false false 1 false true 10682000 10682 false false 2 false true 31500000 31500 false false 3 false true 33423000 33423 false false The cash inflow from the amount received from holders exercising their stock options and other equity not otherwise defined in the taxonomy, and reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from share-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities. No authoritative reference available. false 33 Purchase of treasury stock 2 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -4828000 -4828 false false 2 false true -132906000 -132906 false false 3 false true -66356000 -66356 false false No definition available. No authoritative reference available. false 34 Net cash used in financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -49577000 -49577 false false 2 false true -51406000 -51406 false false 3 false true -32933000 -32933 false false No definition available. No authoritative reference available. true 35 Effect of exchange rate changes on cash 1 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 7396000 7396 false false 2 false true -15293000 -15293 false false 3 false true 4593000 4593 false false No definition available. No authoritative reference available. false 36 Net change in cash and cash equivalents 1 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 68135000 68135 false false 2 false true -98151000 -98151 false false 3 false true 99675000 99675 false false No definition available. No authoritative reference available. true 37 Cash and cash equivalents, beginning of year 1 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false true false false 1 false true 221334000 221334 false false 2 false true 319485000 319485 false false 3 false true 219810000 219810 false false No definition available. No authoritative reference available. false 38 Cash and cash equivalents, end of year 1 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false true false 1 true true 289469000 289469 false false 2 true true 221334000 221334 false false 3 true true 319485000 319485 false false No definition available. No authoritative reference available. false false 3 36 false Thousands UnKnown UnKnown false true