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Income Taxes - Schedule of Components of Deferred Income Tax Assets and Liabilities for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Income Tax Disclosure [Abstract] |  |
Accrued occupancy | $ 1,728 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | $ 1,633 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Deferred rent obligations | 9,248 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent | 10,095 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent
Foreign tax credits | 32,998 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign | 12,026 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign
Valuation allowance foreign tax credits | (6,264)ceco_DeferredTaxAssetsValuationAllowanceForeignTaxCredits | (3,116)ceco_DeferredTaxAssetsValuationAllowanceForeignTaxCredits
Compensation and employee benefits | 14,225 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits | 17,947 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
Tax net operating loss carry forwards | 34,067 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 7,220 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Valuation allowance | (34,067)ceco_DeferredTaxAssetsValuationAllowanceNetOperatingLossCarryforwards | (7,220)ceco_DeferredTaxAssetsValuationAllowanceNetOperatingLossCarryforwards
Allowance for doubtful accounts | 2,269 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts | 1,201 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
Covenant not-to-compete | 37 ceco_DeferredTaxAssetsTaxDeferredExpenseCovenantNotToCompete | 70 ceco_DeferredTaxAssetsTaxDeferredExpenseCovenantNotToCompete
Accrued settlements and legal | 828 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements | 1,904 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements
Deferred compensation | 1,777 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 498 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Accrued restructuring and severance | 1,070 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges | 2,057 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges
Equity method for investments | 19 us-gaap_DeferredTaxAssetsEquityMethodInvestments |
General business tax credits | 450 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness |
Depreciation and amortization | 142 us-gaap_DeferredTaxAssetsTaxDeferredExpense |
Other | 822 us-gaap_DeferredTaxAssetsOther | 1,575 us-gaap_DeferredTaxAssetsOther
Valuation allowance deferred tax assets | (55,995)ceco_DeferredTaxAssetsValuationAllowanceRealizabilityContinuing | (8,250)ceco_DeferredTaxAssetsValuationAllowanceRealizabilityContinuing
Total deferred income tax assets | 3,354 us-gaap_DeferredTaxAssetsDeferredIncome | 37,640 us-gaap_DeferredTaxAssetsDeferredIncome
Depreciation and amortization |  | 19,387 us-gaap_DeferredTaxLiabilitiesDeferredExpense
Other | 3,354 us-gaap_DeferredTaxLiabilitiesOther | 4,003 us-gaap_DeferredTaxLiabilitiesOther
Total deferred income tax liabilities | 3,354 us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome | 23,390 us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome
Net deferred income tax assets |  | $ 14,250 us-gaap_DeferredTaxAssetsNet

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- Definition The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from covenants not to compete, which are deducted for tax purposes over a different period than for accounting purposes. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred rent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from restructuring reserve. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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