Restructuring Charges Disclosure - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Accrued retention bonuses	$ 0.3
Gross remaining lease obligations	78
Accrual for severance and related charges	8.0
Long term amount	$ 2.7

The amount of severance related costs expected to be paid in the next fiscal year related to restructuring actions.

No definition available.

Name:	ceco_SeveranceAccrualShortTermPortionRestructuring
Namespace Prefix:	ceco_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant