v3.26.3
Finance Receivables, Credit Quality Information, and Allowance for Credit Losses - Amortized Cost Basis in Past-Due Loans (Detail) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 2,209,925 $ 2,140,199 $ 2,053,017
Net finance receivables in nonaccrual status $ 104,545 $ 100,620  
Total net finance receivables, Percent 100.00% 100.00%  
Net finance receivables in nonaccrual status, Percent 4.70% 4.70%  
Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 1,742,013 $ 1,593,171 1,512,140
Net finance receivables in nonaccrual status $ 71,030 $ 62,351  
Total net finance receivables, Percent 100.00% 100.00%  
Net finance receivables in nonaccrual status, Percent 4.10% 3.90%  
Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 467,912 $ 547,028 $ 540,877
Net finance receivables in nonaccrual status $ 33,515 $ 38,269  
Total net finance receivables, Percent 100.00% 100.00%  
Net finance receivables in nonaccrual status, Percent 7.20% 7.00%  
Financing Receivables, Current [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 1,860,883 $ 1,809,107  
Current, Percent 84.20% 84.50%  
Financing Receivables, Current [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 1,491,056 $ 1,372,102  
Current, Percent 85.60% 86.10%  
Financing Receivables, Current [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 369,827 $ 437,005  
Current, Percent 79.00% 79.90%  
1 to 29 Days Past Due [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 183,257 $ 169,858  
Past due, Percent 8.30% 8.00%  
1 to 29 Days Past Due [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 139,371 $ 121,113  
Past due, Percent 8.00% 7.60%  
1 to 29 Days Past Due [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 43,886 $ 48,745  
Past due, Percent 9.40% 8.90%  
Delinquent Accounts 30 to 59 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 43,967 $ 41,235  
Past due, Percent 2.00% 1.90%  
Delinquent Accounts 30 to 59 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 30,231 $ 26,940  
Past due, Percent 1.80% 1.70%  
Delinquent Accounts 30 to 59 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 13,736 $ 14,295  
Past due, Percent 3.00% 2.60%  
Delinquent Accounts 60 to 89 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 36,937 $ 37,158  
Past due, Percent 1.70% 1.70%  
Delinquent Accounts 60 to 89 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 25,136 $ 23,576  
Past due, Percent 1.40% 1.50%  
Delinquent Accounts 60 to 89 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 11,801 $ 13,582  
Past due, Percent 2.50% 2.50%  
Delinquent Accounts 90 to 119 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 31,585 $ 30,818  
Past due, Percent 1.40% 1.50%  
Delinquent Accounts 90 to 119 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 21,138 $ 18,957  
Past due, Percent 1.10% 1.20%  
Delinquent Accounts 90 to 119 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 10,447 $ 11,861  
Past due, Percent 2.20% 2.20%  
Delinquent Accounts 120 to 149 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 27,927 $ 27,765  
Past due, Percent 1.30% 1.30%  
Delinquent Accounts 120 to 149 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 18,464 $ 16,715  
Past due, Percent 1.10% 1.00%  
Delinquent Accounts 120 to 149 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 9,463 $ 11,050  
Past due, Percent 2.00% 2.00%  
Delinquent Accounts 150 to 179 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 25,369 $ 24,258  
Past due, Percent 1.10% 1.10%  
Delinquent Accounts 150 to 179 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 16,617 $ 13,768  
Past due, Percent 1.00% 0.90%  
Delinquent Accounts 150 to 179 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 8,752 $ 10,490  
Past due, Percent 1.90% 1.90%  
Total Delinquency Accounts [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 165,785 $ 161,234  
Past due, Percent 7.50% 7.50%  
Total Delinquency Accounts [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 111,586 $ 99,956  
Past due, Percent 6.40% 6.30%  
Total Delinquency Accounts [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 54,199 $ 61,278  
Past due, Percent 11.60% 11.20%