Discontinued Operations - Summary Results of Operations for Discontinued Operations (Parenthetical) (Detail) $ in Millions	12 Months Ended
Dec. 31, 2013 USD ($)
Discontinued Operations And Disposal Groups [Abstract]
Income tax expense	$ 87.9

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.

No definition available.

Name:	ceco_DiscontinuedOperationsIncomeTaxExpenseAttributedToSaleOfInternationalOperations
Namespace Prefix:	ceco_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration