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Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accounts receivable allowance      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year $ 376 $ 394 $ 153
Release for Bad Debts (99)    
Provision for Bad Debts   58 387
Net Write-offs (87) (76) (146)
Balance at End of Year 190 376 394
Refund reserve      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 1,538 1,499 1,392
Provision for Bad Debts 9,831 9,724 21,129
Net Write-offs (10,874) (9,685) (21,022)
Balance at End of Year $ 495 $ 1,538 $ 1,499