Investment in Receivable Portfolios, Net - Summary of Changes in Balance of Investment in Receivable Portfolios in 2019 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investment in Receivables Portfolio [Roll Forward]
Balance, beginning of period	$ 3,291,918	$ 3,283,984	$ 3,137,893
Purchases of Receivable Portfolios	664,529	659,872	1,046,696
Collections applied to investment in receivable portfolios, net	(1,019,629)	(737,131)	(757,640)
Put-backs and Recalls	(7,249)	(15,824)	(11,591)
Deconsolidation of receivable portfolios	(9,352)	(2,822)	(51,935)
Disposals and transfers to real estate owned	(8,071)	(9,459)	(11,495)
Sale of receivable portfolio			(98,636)
Portfolio allowance, net	0	0	(8,108)
Foreign currency adjustments	(45,729)	61,886	38,800
Balance, end of period	$ 3,065,553	$ 3,291,918	3,283,984
Gain on Sale of Investments			$ 9,300