Segment Reporting - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021 Segment University
Segment Reporting Information [Line Items]
Number of reporting segments | Segment	2
CTU [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	61.00%
CTU [Member] | Fully Online [Member]
Segment Reporting Information [Line Items]
Percentage of enrollment	96.00%
AIUS [Member]
Segment Reporting Information [Line Items]
Students enrolled expressed as percentage of enrollment	39.00%
Number of Universities | University	2
AIUS [Member] | Fully Online [Member]
Segment Reporting Information [Line Items]
Percentage of enrollment	97.00%