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Segment Reporting - Additional Information (Detail) | Sep. 30, 2016 Cmp
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CTU [Member] |
Segment Reporting Information [Line Items] |
Students enrolled expressed as percentage of enrollment | 59.00%
AIU [Member] |
Segment Reporting Information [Line Items] |
Students enrolled expressed as percentage of enrollment | 29.00%
Culinary Arts [Member] |
Segment Reporting Information [Line Items] |
Students enrolled expressed as percentage of enrollment | 9.00%
Transitional Group [Member] |
Segment Reporting Information [Line Items] |
Students enrolled expressed as percentage of enrollment | 3.00%
Number of campuses completed teach out activities | 5
Fully Online [Member] | CTU [Member] |
Segment Reporting Information [Line Items] |
Percentage of enrollment | 93.00%
Fully Online [Member] | AIU [Member] |
Segment Reporting Information [Line Items] |
Percentage of enrollment | 93.00%

X
- Definition The number of campuses which completed their teach-out activities for the reporting period. + References No definition available. + Details
Name: | ceco_NumberOfCampusesWhichCompletedTeachOut
Namespace Prefix: | ceco_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of enrollment. + References No definition available. + Details
Name: | ceco_PercentageOfEnrollment
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

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ceco_CTUMember
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_CulinaryArtsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ceco_TransitionalGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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