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Student Receivables - Changes in Current and Non-Current Receivables Allowance (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Receivables [Abstract]        
Balance, Beginning of Period $ 43,786 $ 42,876 $ 39,255 $ 42,147
Provision for credit losses 7,905 10,192 32,284 36,364
Amounts Written-off (8,610) (13,802) (30,132) (41,122)
Recoveries 608 756 2,282 2,633
Balance, End of Period $ 43,689 $ 40,022 $ 43,689 $ 40,022