Student Receivables - Changes in Current and Non-Current Allowance For Credit Losses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Receivables [Abstract]
Balance, Beginning of Period	$ 43,141	$ 39,255	$ 42,147
Provision for credit losses	33,215	41,574	44,349
Amounts written-off	(40,590)	(40,455)	(50,514)
Recoveries	2,016	2,767	3,273
Balance, End of Period	$ 37,782	$ 43,141	$ 39,255