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Discontinued Operations - Changes in Future Remaining Lease Obligations Discontinued Operations (Detail) (USD $)
In Thousands, unless otherwise specified

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Discontinued Operations And Disposal Groups [Abstract]

Balance, Beginning of Period

$ 43,900

$ 46,298

Charges Incurred

6,311

^[1]

(227)

^[1]

Net Cash Payments

(5,817)

(2,294)

Other

3,033

^[2]

(38)

^[2]

Balance, End of Period

$ 47,427

$ 43,739

[1]	Includes charges for newly vacated spaces and subsequent adjustments for accretion, revised estimates and variances between estimated and actual charges, net of any reversals for terminated lease obligations.
[2]	Includes existing prepaid rent and deferred rent liability balances for newly vacated spaces that are netted with the losses incurred in the period recorded.

X

- Definition

For the disposal group, including a component of the entity (discontinued operation), the present value of remaining lease obligations recorded at the time a facility is exited.

+ References

No definition available.

+ Details

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

X

- Definition

For the disposal group, including a component of the entity (discontinued operation), the change in the liability during the period for remaining lease obligations related to charges for newly vacated space, subsequent adjustments for accretion, revised estimates and variances between estimated and actual charges.

+ References

No definition available.

+ Details

Name:	ceco_DisposalGroupIncludingDiscontinuedOperationRemainingLeaseObligationsIncurred
Namespace Prefix:	ceco_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

For the disposal group, including a component of the entity (discontinued operation), the decrease during the period for remaining lease obligations related to cash payments for vacated facilities.

+ References

No definition available.

+ Details

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

X

- Definition

For the disposal group, including a component of the entity (discontinued operation), the net change during the period for remaining lease obligations related to transfer of existing deferred rent liability balances for newly vacated spaces that offset the losses incurred in the period recorded.

+ References

No definition available.

+ Details

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

X

- Details

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