Investment in Receivable Portfolios, Net - Establishment of Negative Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Receivables [Abstract]
Purchase price	$ 230,559	$ 232,652	$ 781,315	$ 575,164
Allowance for credit losses	666,915	608,708	2,017,060	1,727,826
Amortized cost	897,474	841,360	2,798,375	2,302,990
Noncredit discount	1,171,383	834,468	3,225,837	2,398,775
Face value	2,068,857	1,675,828	6,024,212	4,701,765
Write-off of amortized cost	(897,474)	(841,360)	(2,798,375)	(2,302,990)
Write-off of noncredit discount	(1,171,383)	(834,468)	(3,225,837)	(2,398,775)
Negative allowance	230,559	232,652	781,315	575,164
Negative allowance for expected recoveries - current period purchases	$ 230,559	$ 232,652	$ 781,315	$ 575,164