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Segment Reporting - Additional Information (Detail)	Dec. 31, 2014
CTU [Member]
Sales Information [Line Items]
Students enrolled expressed as percentage of enrollment	49.00%ceco_PercentageOfStudentEnrollment / us-gaap_StatementBusinessSegmentsAxis = ceco_CtuMember
AIU [Member]
Sales Information [Line Items]
Students enrolled expressed as percentage of enrollment	28.00%ceco_PercentageOfStudentEnrollment / us-gaap_StatementBusinessSegmentsAxis = ceco_AiuMember
Career Colleges [Member]
Sales Information [Line Items]
Students enrolled expressed as percentage of enrollment	21.00%ceco_PercentageOfStudentEnrollment / us-gaap_StatementBusinessSegmentsAxis = ceco_CareerCollegesMember
Fully Online [Member] | CTU [Member]
Sales Information [Line Items]
Percentage of enrollment	90.00%ceco_PercentageOfEnrollment / us-gaap_ProductOrServiceAxis = ceco_FullyOnlineProgramMember / us-gaap_StatementBusinessSegmentsAxis = ceco_CtuMember
Fully Online [Member] | AIU [Member]
Sales Information [Line Items]
Percentage of enrollment	90.00%ceco_PercentageOfEnrollment / us-gaap_ProductOrServiceAxis = ceco_FullyOnlineProgramMember / us-gaap_StatementBusinessSegmentsAxis = ceco_AiuMember
Fully Online [Member] | Career Colleges [Member]
Sales Information [Line Items]
Percentage of enrollment	15.00%ceco_PercentageOfEnrollment / us-gaap_ProductOrServiceAxis = ceco_FullyOnlineProgramMember / us-gaap_StatementBusinessSegmentsAxis = ceco_CareerCollegesMember

X

- Definition

Percentage Of Enrollment

+ References

No definition available.

+ Details

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Namespace Prefix:	ceco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The percentage of student enrollment for a specific group of the total entity.

+ References

No definition available.

+ Details

Name:	ceco_PercentageOfStudentEnrollment
Namespace Prefix:	ceco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

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Namespace Prefix:	ceco_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ProductOrServiceAxis=ceco_FullyOnlineProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ceco_AiuMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ceco_CareerCollegesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ceco_CtuMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: