Student Loans - Summary of the Amortized Cost of Student Loan Aging (Details) $ in Thousands	Mar. 31, 2023 USD ($) borrower	Dec. 31, 2022 USD ($) borrower	Mar. 31, 2022 USD ($)
Amount
Total Loans	$ 942,727	$ 980,178	$ 876,963
31 - 60 days
Amount
Total Loans	3,556	554
61 - 90 days
Amount
Total Loans	571	642
Student loan
Amount
Total Loans	$ 41,419	$ 42,130
Student loan | Repayment and Forbearance
Number of Borrowers
Total | borrower	256,000	268,000
Amount
Total Loans	$ 28,282	$ 28,433
Student loan | Repayment and Forbearance | Current or less than 31 days
Number of Borrowers
Number of borrowers, current | borrower	239,000	251,000
Amount
Total Loans	$ 26,512	$ 26,993
Student loan | Repayment and Forbearance | 31 - 60 days
Number of Borrowers
Number of borrowers, past due | borrower	6,000	8,000
Amount
Total Loans	$ 817	$ 546
Student loan | Repayment and Forbearance | 61 - 90 days
Number of Borrowers
Number of borrowers, past due | borrower	7,000	5,000
Amount
Total Loans	$ 571	$ 642
Student loan | Repayment and Forbearance | 91 - 120 days
Number of Borrowers
Number of borrowers, past due | borrower	4,000	4,000
Amount
Total Loans	$ 382	$ 252