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Discontinued Operations - Summary Results of Operations for Discontinued Operations (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2013
Discontinued Operations And Disposal Groups [Abstract]
Income tax expense recorded in discontinued operations	$ 39.9

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- Definition

Income tax expense recorded due to a change in management's assertion regarding investment in foreign subsidiaries, including the tax effect of the difference in basis for financial reporting purposes versus tax reporting.

+ References

No definition available.

+ Details

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

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- Details

Name:	us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration