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Share-Based Compensation - Schedule of Restricted Stock Units to be Settled in Cash (Detail) (Restricted Stock Units to be Settled in Cash [Member]) | 12 Months Ended
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Dec. 31, 2013
Restricted Stock Units to be Settled in Cash [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Outstanding as of December 31, 2012, Stock Units to be Settled in Cash |
Stock Units to be Settled in Cash, Granted | 2,938,283
Stock Units to be Settled in Cash, Vested |
Stock Units to be Settled in Cash, Forfeited | (649,368)
Outstanding as of September 30, 2013, Stock Units to be Settled in Cash | 2,288,915

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited Settled In Cash + References No definition available. + Details
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Period Type: | duration

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan) to be settled in cash. + References No definition available. + Details
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Non Vested Number Settled In Cash + References No definition available. + Details
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Namespace Prefix: | ceco_
Data Type: | xbrli:sharesItemType
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Period Type: | instant

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Settled In Cash + References No definition available. + Details
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Namespace Prefix: | ceco_
Data Type: | xbrli:sharesItemType
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Period Type: | duration

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- Details
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Balance Type: | na
Period Type: | duration