Student Loans - Aging for Loans (Details) $ in Thousands	Dec. 31, 2022 USD ($) borrower	Dec. 31, 2021 USD ($) borrower
Total Past Due Loans
Total loans	$ 981,772	$ 869,314
Loans 30-60 Days Past Due
Total Past Due Loans
Total loans	554	8,385
Loans 61-89 Days Past Due
Total Past Due Loans
Total loans	642	328
Greater than 90 days
Total Past Due Loans
Total loans	12,905	9,683
Student loan
Total Past Due Loans
Total loans	$ 42,130	$ 48,457
Student loan | Repayment and Forbearance
Number of Borrowers
Number of borrowers | borrower	268,000	290,000
Total Past Due Loans
Total loans	$ 28,433	$ 32,005
Student loan | Repayment and Forbearance | Current or less than 31 days
Number of Borrowers
Number of borrowers, current | borrower	251,000	272,000
Total Past Due Loans
Total loans	$ 26,993	$ 29,596
Student loan | Repayment and Forbearance | Loans 30-60 Days Past Due
Number of Borrowers
Number of borrowers, past due | borrower	8,000	10,000
Total Past Due Loans
Total loans	$ 546	$ 1,628
Student loan | Repayment and Forbearance | Loans 61-89 Days Past Due
Number of Borrowers
Number of borrowers, past due | borrower	5,000	3,000
Total Past Due Loans
Total loans	$ 642	$ 328
Student loan | Repayment and Forbearance | Greater than 90 days
Number of Borrowers
Number of borrowers, past due | borrower	4,000	5,000
Total Past Due Loans
Total loans	$ 252	$ 453