Receivables and Allowance for Credit Losses - Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Notes Receivable and Allowance for Losses [Line Items]
2022	$ 0
2021	4,211
2020	0
Prior	109,729
Total	113,940	$ 137,683
Senior
Notes Receivable and Allowance for Losses [Line Items]
2022	0
2021	4,211
2020	0
Prior	87,770
Total	91,981	108,370
Subordinated
Notes Receivable and Allowance for Losses [Line Items]
2022	0
2021	0
2020	0
Prior	20,506
Total	20,506	27,801
Unsecured
Notes Receivable and Allowance for Losses [Line Items]
2022	0
2021	0
2020	0
Prior	1,453
Total	$ 1,453	$ 1,512