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v3.5.0.2

Segment Reporting - Summary Financial Information by Reporting Segment (Parenthetical) (Detail) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2016
CTU [Member] |  |
Segment Reporting Information [Line Items] |  |
Bad debt increase in percentage of revenue | 0.30% | 2.40%
AIU [Member] |  |
Segment Reporting Information [Line Items] |  |
Bad debt increase in percentage of revenue | 1.40% | 1.70%

X
- Definition Bad debt increase as percentage of revenue. + References No definition available. + Details
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Namespace Prefix: | ceco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Details
Name: | us-gaap_SubsegmentsAxis=ceco_CTUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=ceco_AIUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |