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Costs and Estimated Earnings on Uncompleted Contracts - Costs and Estimated Earnings on Uncompleted Contracts (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Costs in Excess of Billings on Uncompleted Contracts or Programs [Abstract]    
Costs incurred on uncompleted contracts $ 103,990cece_ContractsRevenueCostUncompletedContractsComponent $ 97,979cece_ContractsRevenueCostUncompletedContractsComponent
Estimated earnings 31,278cece_ContractsRevenueEstimatedEarningsUncompletedContractsComponent 28,328cece_ContractsRevenueEstimatedEarningsUncompletedContractsComponent
Contract Revenues 135,268us-gaap_ContractsRevenue 126,307us-gaap_ContractsRevenue
Less billings to date (118,312)cece_ContractBilledReceivablesIncreaseDecrease (116,533)cece_ContractBilledReceivablesIncreaseDecrease
Net bills receivable 16,956cece_NetUnderOverContractBillingUncompletedContracts 9,774cece_NetUnderOverContractBillingUncompletedContracts
Included in the accompanying condensed consolidated balance sheets under the following captions:    
Costs and estimated earnings in excess of billings on uncompleted contracts 31,985us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear 24,371us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear
Billings in excess of costs and estimated earnings on uncompleted contracts (15,029)us-gaap_BillingsInExcessOfCostCurrent (14,597)us-gaap_BillingsInExcessOfCostCurrent
Net bills receivable $ 16,956cece_NetUnderOverContractBillingUncompletedContracts $ 9,774cece_NetUnderOverContractBillingUncompletedContracts