Student Receivables - Changes in Current and Non-Current Allowance For Credit Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Receivables [Abstract]
Balance, Beginning of Period	$ 43,944	$ 43,657	$ 43,141	$ 39,255
Provision for credit losses	8,170	10,664	18,927	24,379
Amounts written-off	(9,608)	(11,258)	(20,136)	(21,522)
Recoveries	549	723	1,123	1,674
Balance, End of Period	$ 43,055	$ 43,786	$ 43,055	$ 43,786