Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenues:
Financing Receivable, Allowance For Credit Losses, Recoveries Reclassified To Income	$ 269,579	$ 240,958
Financing Receivable, Allowance For Credit Loss, Changes In Estimated Recoveries	43,886	27,922
Financing Receivable, Allowance For Credit Loss, Portfolio Revenue	313,465	268,880
Revenue From Contract With Customer And Fee Revenue, Excluding Assessed Tax	1,068	739
Revenues, Total	314,533	269,619
Operating Expenses [Abstract]
Labor and Related Expense	70,738	73,323
Legal Fees	17,071	15,230
Legal Costs	48,458	33,394
Agency Fees	24,581	21,368
Outside Fees And Services Expenses	20,884	21,103
Communication	9,019	10,477
Rent And Occupancy	3,258	3,480
Depreciation, amortization and impairment of long-lived assets	1,708	3,769
Other Cost and Expense, Operating	15,562	12,898
Operating Expenses, Total	211,279	195,042
Operating Income (Loss), Total	103,254	74,577
Nonoperating Income (Expense) [Abstract]
Interest Income (Expense), Nonoperating	(63,518)	(60,970)
Gain (Loss), Foreign Currency Transaction, before Tax	1,054	(51)
Other Nonoperating Income (Expense)	(254)	(180)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	40,536	13,376
Income Tax Expense (Benefit)	8,764	4,312
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	31,772	9,064
Net Income (Loss) Attributable to Noncontrolling Interest	3,562	5,405
Net Income (Loss) Attributable to Parent, Total	$ 28,210	$ 3,659
Earnings Per Share [Abstract]
Basic (in dollars per share)	$ 0.74	$ 0.09
Diluted (in dollars per share)	$ 0.73	$ 0.09
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (shares)	38,368	39,549
Diluted (shares)	38,511	39,688