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Discontinued Operations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 0 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 03, 2013 | Dec. 31, 2014 Campus | Dec. 31, 2014 Campus | Dec. 03, 2013
Discontinued Operations and Disposal Groups [Abstract] |  |  |  |
Number of campuses completed teach out activities |  | 21 ceco_NumberOfCampusesWhichCompletedTeachOut | 21 ceco_NumberOfCampusesWhichCompletedTeachOut |
Number of campus sold |  |  | 2 ceco_NumberOfCampusSold |
Asset impairment charges |  | $ 10.0 ceco_ImpairmentAmountDiscontinuedOperations |  |
Number of LCB institutions resulting in impairment |  | 4 ceco_NumberOfCampusesResultingInImpairment |  |
Sale agreement amount | 305.0 ceco_SaleAgreementAmount |  |  |
Cash received on sale | 276.5 us-gaap_ProceedsFromDivestitureOfBusinesses |  |  |
Gain on sale of business | 130.1 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax |  |  |
Transaction costs |  |  |  | 8.9 us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Income tax expense | $ 87.9 ceco_DiscontinuedOperationsIncomeTaxExpenseAttributedToSaleOfInternationalOperations |  | $ 87.9 ceco_DiscontinuedOperationsIncomeTaxExpenseAttributedToSaleOfInternationalOperations |
Lease expiration year |  |  | 2022 |

X
- Definition Income tax expense recorded due to the sale of International operations, including the tax effect of the difference in basis for financial reporting purposes versus tax reporting. + References No definition available. + Details
Name: | ceco_DiscontinuedOperationsIncomeTaxExpenseAttributedToSaleOfInternationalOperations
Namespace Prefix: | ceco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The latest lease expiration of all leases related to discontinued operations. + References No definition available. + Details
Name: | ceco_DiscontinuedOperationsLeaseExpirationYear
Namespace Prefix: | ceco_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of impairment recorded during the period related to long-lived assets of discontinued operations. + References No definition available. + Details
Name: | ceco_ImpairmentAmountDiscontinuedOperations
Namespace Prefix: | ceco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of campuses that failed the recoverability test and required a fair value calculation. + References No definition available. + Details
Name: | ceco_NumberOfCampusesResultingInImpairment
Namespace Prefix: | ceco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of campuses which completed their teach-out activities for the reporting period. + References No definition available. + Details
Name: | ceco_NumberOfCampusesWhichCompletedTeachOut
Namespace Prefix: | ceco_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of campuses sold during the reporting period. + References No definition available. + Details
Name: | ceco_NumberOfCampusSold
Namespace Prefix: | ceco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of consideration pursuant to the Purchase Agreement prior to distributions and adjustments. + References No definition available. + Details
Name: | ceco_SaleAgreementAmount
Namespace Prefix: | ceco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
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- Definition Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Details
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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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