v3.26.1
Finance Receivables, net Finance Receivables, net (Initial Negative Allowance for Recoveries) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Financing Receivable, Allowance for Credit Losses [Line Items]                
Allowance for credit losses at acquisition $ (1,554,189) $ (1,723,444) $ (2,806,583) $ (3,215,007)        
Writeoffs, net 1,554,189 1,723,444 2,806,583 3,215,007        
Expected recoveries 296,571 346,505 517,421 638,207        
Purchase price 296,571 346,505 517,421 638,207        
Amortized cost 0   0     $ 0    
Negative allowance for expected recoveries 4,717,204   4,717,204     4,688,024    
Balance as of end of period 4,717,204 4,562,576 4,717,204 4,562,576 $ 4,637,094 4,688,024 $ 4,308,334 $ 4,140,742
Core                
Financing Receivable, Allowance for Credit Losses [Line Items]                
Allowance for credit losses at acquisition (1,453,783) (1,635,702) (2,644,455) (3,053,673)        
Writeoffs, net 1,453,783 1,635,702 2,644,455 3,053,673        
Expected recoveries 267,517 319,562 470,467 593,455        
Purchase price 267,517 319,562 470,467 593,455        
Balance as of end of period 4,406,963 4,234,269 4,406,963 4,234,269 4,344,825 4,383,201 3,986,864 3,809,723
Insolvency                
Financing Receivable, Allowance for Credit Losses [Line Items]                
Allowance for credit losses at acquisition (100,406) (87,742) (162,128) (161,334)        
Writeoffs, net 100,406 87,742 162,128 161,334        
Expected recoveries 29,054 26,943 46,954 44,752        
Purchase price 29,054 26,943 46,954 44,752        
Balance as of end of period $ 310,241 $ 328,307 $ 310,241 $ 328,307 $ 292,269 $ 304,823 $ 321,470 $ 331,019