Segment Reporting - Additional Information (Detail)	Dec. 31, 2015
CTU [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	49.00%
AIU [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	25.00%
Culinary Arts [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	18.00%
Transitional Group [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	8.00%
Fully Online [Member] | CTU [Member]
Segment Reporting Information [Line Items]
Percentage of enrollment	92.00%
Fully Online [Member] | AIU [Member]
Segment Reporting Information [Line Items]
Percentage of enrollment	92.00%