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Leases - Schedule of Future Minimum Lease Payments under Capital Leases and Operating Leases for Continuing Operations and Discontinued Operations (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2012
Future Minimum Lease Payments Under Capital Leases And Operating Leases For Continuing Operations [Line Items] |
Capital leases, annual interest rate | 6.25%

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- Definition Capital leases, annual interest rate + References No definition available. + Details
Name: | ceco_CapitalLeasesAnnualInterestRate
Namespace Prefix: | ceco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ceco_FutureMinimumLeasePaymentsUnderCapitalLeasesAndOperatingLeasesForContinuingOperationsLineItems
Namespace Prefix: | ceco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration