Finance Receivables, net (Changes in Estimated Future Recoveries) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Allowance for Credit Losses [Line Items]
Changes in expected future recoveries	$ 21,188	$ 11,422
Recoveries collected in excess of forecast	22,698	16,500
Financing Receivable, Allowance For Credit Loss, Changes In Estimated Recoveries	43,886	27,922
Recoveries	557,170	506,076
Less - amounts reclassified to portfolio income	269,579	240,958
Recoveries collected and applied to Finance receivables, net	287,591	265,118
Core
Financing Receivable, Allowance for Credit Losses [Line Items]
Changes in expected future recoveries	21,162	12,035
Recoveries collected in excess of forecast	19,192	14,290
Financing Receivable, Allowance For Credit Loss, Changes In Estimated Recoveries	40,354	26,325
Recoveries	514,154	460,969
Less - amounts reclassified to portfolio income	258,248	229,486
Recoveries collected and applied to Finance receivables, net	255,906	231,483
Insolvency
Financing Receivable, Allowance for Credit Losses [Line Items]
Changes in expected future recoveries	26	(613)
Recoveries collected in excess of forecast	3,506	2,210
Financing Receivable, Allowance For Credit Loss, Changes In Estimated Recoveries	3,532	1,597
Recoveries	43,016	45,107
Less - amounts reclassified to portfolio income	11,331	11,472
Recoveries collected and applied to Finance receivables, net	$ 31,685	$ 33,635