Segment Reporting - Additional Information (Detail)	Sep. 30, 2016 Cmp
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%