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Restructuring Charges - Restructuring Charges by Segment (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses $ 3,524us-gaap_RestructuringCharges [1] $ 5,084us-gaap_RestructuringCharges [1]
CTU [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses 544us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_CtuMember
 
AIU [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses 103us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_AiuMember
213us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_AiuMember
University Group [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses 647us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_UniversityGroupMember
213us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_UniversityGroupMember
Career Colleges [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses 1,093us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_CareerCollegesMember
1,351us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_CareerCollegesMember
Corporate and Other [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses 1,087us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
2,088us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Subtotal [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses 2,827us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_BusinessSegmentExcludingTransitionSchoolsMember
3,652us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_BusinessSegmentExcludingTransitionSchoolsMember
Transitional Group [Member]    
Restructuring Acquisition And Integration Charges [Line Items]    
Severance and related expenses $ 697us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_TransitionalGroupMember
$ 1,432us-gaap_RestructuringCharges
/ us-gaap_StatementBusinessSegmentsAxis
= ceco_TransitionalGroupMember
[1] Includes payments related to COBRA and outplacement services which are assumed to be completed by the third month following an employee's departure.