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Debt - Additional Information (Detail)	3 Months Ended					3 Months Ended																3 Months Ended					3 Months Ended		3 Months Ended
	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)	Nov. 18, 2014 USD ($)	Aug. 17, 2012 Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Mar. 31, 2015 Federal Funds Rate [Member]	Mar. 31, 2015 One-Month LIBOR [Member]	Mar. 31, 2015 Bank Overdrafts [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] USD ($)	Mar. 31, 2015 Bank Overdrafts [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Dec. 31, 2014 Bank Overdrafts [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] USD ($)	Dec. 31, 2014 Bank Overdrafts [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Aug. 17, 2012 Bank Overdrafts [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Nov. 18, 2014 Term Loan [Member] USD ($)	Aug. 27, 2013 Term Loan [Member] USD ($)	Aug. 27, 2013 Term Loan [Member] Met-Pro [Member] USD ($)	Nov. 18, 2014 U.S. Dollar Revolving Loans [Member] USD ($)	Aug. 27, 2013 U.S. Dollar Revolving Loans [Member] USD ($)	Aug. 27, 2013 U.S. Dollar Revolving Loans [Member] Met-Pro [Member] USD ($)	Mar. 31, 2015 Letters of Credit [Member] USD ($)	Dec. 31, 2014 Letters of Credit [Member] USD ($)	Aug. 27, 2013 Multi-currency Revolving Credit Facility [Member] USD ($)	Mar. 31, 2015 Bank Guarantees [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] USD ($)	Mar. 31, 2015 Bank Guarantees [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Dec. 31, 2014 Bank Guarantees [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] USD ($)	Dec. 31, 2014 Bank Guarantees [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Aug. 17, 2012 Bank Guarantees [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member] EUR (€)	Mar. 31, 2015 Minimum [Member] Cross Currency Interest Rate Contract [Member]	Aug. 17, 2012 Minimum [Member] Aarding Thermal Acoustics B.V. ("Aarding") [Member]	Mar. 31, 2015 Minimum [Member] Base Rate [Member]	Mar. 31, 2015 Maximum [Member] Cross Currency Interest Rate Contract [Member]	Mar. 31, 2015 Maximum [Member] Base Rate [Member]
Line of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities														$ 65,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = cece_SeniorSecuredTermLoanMember	$ 65,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_BusinessAcquisitionAxis = cece_MetProCorporationMember / us-gaap_CreditFacilityAxis = cece_SeniorSecuredTermLoanMember		$ 70,500,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember	$ 52,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_BusinessAcquisitionAxis = cece_MetProCorporationMember / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember			$ 19,500,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_ForeignLineOfCreditMember
Increased credit facility commitment for either revolving credit facility or term loan facility				50,000,000cece_LineOfCreditFacilityRightToIncreaseCommitment									35,000,000cece_LineOfCreditFacilityRightToIncreaseCommitment / us-gaap_CreditFacilityAxis = cece_SeniorSecuredTermLoanMember			15,000,000cece_LineOfCreditFacilityRightToIncreaseCommitment / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Aggregate principal amount outstanding under the credit facilities								2,600,000us-gaap_LineOfCredit / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember	2,400,000us-gaap_LineOfCredit / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember	0us-gaap_LineOfCredit / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember	0us-gaap_LineOfCredit / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember								10,400,000us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_StandbyLettersOfCreditMember	9,500,000us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_StandbyLettersOfCreditMember		7,600,000us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember	7,000,000us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember	6,700,000us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember	5,500,000us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember
Unused credit availability under credit facility	70,600,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount		71,500,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Basis spread on variable rate						0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_VariableRateAxis = cece_FederalFundsRateMember	1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_VariableRateAxis = cece_OneMonthLiborMember																				1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CrossCurrencyInterestRateContractMember / us-gaap_RangeAxis = us-gaap_MinimumMember		0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember	2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CrossCurrencyInterestRateContractMember / us-gaap_RangeAxis = us-gaap_MaximumMember	1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember
Weighted average interest rate on outstanding borrowings	2.25%us-gaap_DebtWeightedAverageInterestRate		2.24%us-gaap_DebtWeightedAverageInterestRate					1.99%us-gaap_DebtWeightedAverageInterestRate / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember	1.99%us-gaap_DebtWeightedAverageInterestRate / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember													2.69%us-gaap_DebtWeightedAverageInterestRate / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember	2.69%us-gaap_DebtWeightedAverageInterestRate / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember
Maximum consolidated leverage ratio	3.25cece_MaximumConsolidatedLeverageRatio
Minimum fixed charge coverage ratio	1.25cece_MinimumFixedChargeCoverageRatioRate
Increased interest rate of loan due to default	2.00%cece_DebtDefaultIncreaseInBasisSpreadOnInterestRate
Other expenses for credit agreement	3,100,000us-gaap_DeferredFinanceCostsGross
Capitalized deferred financing costs	500,000us-gaap_DeferredFinanceCostsNet		500,000us-gaap_DeferredFinanceCostsNet
Unamortized debt discount	(1,674,000)us-gaap_DebtInstrumentUnamortizedDiscount		(1,796,000)us-gaap_DebtInstrumentUnamortizedDiscount
Amortization expense	100,000us-gaap_AmortizationOfDeferredCharges	100,000us-gaap_AmortizationOfDeferredCharges
Facilities agreement, amount					€ 10,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember							€ 3,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_BankOverdraftsMember														€ 7,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = cece_BankGuaranteesMember / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember
Borrowers solvency ratio																												30.00%cece_DebtInstrumentSolvencyRatio / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum debt as proportion of EBITDA					3.0cece_MaximumDebtAsProportionOfEarningBeforeInterestTaxDepreciationAndAmortization / dei_LegalEntityAxis = cece_AardingThermalAcousticsBvMember
Debt instrument variable interest rate description								Three months Euribor plus 195 basis points	Three months Euribor plus 195 basis points													Three months Euribor plus 265 basis points	Three months Euribor plus 265 basis points

X

- Definition

Debt default increase in basis spread on interest rate.

+ References

No definition available.

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- Definition

Debt instrument solvency ratio.

+ References

No definition available.

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- Definition

Line of credit facility right to increase commitment.

+ References

No definition available.

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- Definition

Maximum consolidated leverage ratio.

+ References

No definition available.

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- Definition

Maximum debt as proportion of earning before interest tax depreciation and amortization.

+ References

No definition available.

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- Definition

Minimum fixed charge coverage ratio rate.

+ References

No definition available.

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- Definition

The amount of amortization of deferred charges applied against earnings during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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-Name Accounting Standards Codification

-Topic 835

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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-Publisher FASB

-Name Accounting Standards Codification

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-Number 210

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

For an unclassified balance sheet, the amount as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. Such amount is before the consideration of accumulated amortization.

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For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Name Accounting Standards Codification

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Publisher FASB

-Name Accounting Standards Codification

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