Segment Reporting - Additional Information (Detail)	Mar. 31, 2017 Cmp
CTU [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	60.00%
CTU [Member] | Fully Online [Member]
Segment Reporting Information [Line Items]
Percentage of enrollment	92.00%
AIU [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	35.00%
AIU [Member] | Fully Online [Member]
Segment Reporting Information [Line Items]
Percentage of enrollment	93.00%
Culinary Arts [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	4.00%
Transitional Group [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	1.00%
Number of campuses completed teach out activities	2