Investment in Receivable Portfolios, Net - Establishment of Negative Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Receivables [Abstract]
Purchase price	$ 232,652	$ 168,188	$ 575,164	$ 481,094
Allowance for credit losses	608,708	449,412	1,727,826	1,174,524
Amortized cost	841,360	617,600	2,302,990	1,655,618
Noncredit discount	834,468	786,194	2,398,775	2,228,664
Face value	1,675,828	1,403,794	4,701,765	3,884,282
Write-off of amortized cost	(841,360)	(617,600)	(2,302,990)	(1,655,618)
Write-off of noncredit discount	(834,468)	(786,194)	(2,398,775)	(2,228,664)
Negative allowance	232,652	168,188	575,164	481,094
Negative allowance for expected recoveries - current period purchases	$ 232,652	$ 168,188	$ 575,164	$ 481,094