v3.26.1
Finance Receivables, Credit Quality Information, and Allowance for Credit Losses - Amortized Cost Basis in Past-Due Loans (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 2,148,253 $ 2,140,199 $ 1,960,364
Net finance receivables in nonaccrual status $ 89,165 $ 100,620  
Total net finance receivables, Percent 100.00% 100.00%  
Net finance receivables in nonaccrual status, Percent 4.20% 4.70%  
Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 1,659,685 $ 1,593,171 1,413,367
Net finance receivables in nonaccrual status $ 58,111 $ 62,351  
Total net finance receivables, Percent 100.00% 100.00%  
Net finance receivables in nonaccrual status, Percent 3.50% 3.90%  
Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 488,568 $ 547,028 $ 546,997
Net finance receivables in nonaccrual status $ 31,054 $ 38,269  
Total net finance receivables, Percent 100.00% 100.00%  
Net finance receivables in nonaccrual status, Percent 6.40% 7.00%  
Financing Receivables, Current [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 1,824,145 $ 1,809,107  
Current, Percent 84.90% 84.50%  
Financing Receivables, Current [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 1,432,725 $ 1,372,102  
Current, Percent 86.30% 86.10%  
Financing Receivables, Current [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 391,420 $ 437,005  
Current, Percent 80.10% 79.90%  
1 to 29 Days Past Due [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 174,752 $ 169,858  
Past due, Percent 8.10% 8.00%  
1 to 29 Days Past Due [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 129,732 $ 121,113  
Past due, Percent 7.80% 7.60%  
1 to 29 Days Past Due [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 45,020 $ 48,745  
Past due, Percent 9.20% 8.90%  
Delinquent Accounts 30 to 59 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 40,971 $ 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 $ 27,259 $ 26,940  
Past due, Percent 1.70% 1.70%  
Delinquent Accounts 30 to 59 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 13,712 $ 14,295  
Past due, Percent 2.90% 2.60%  
Delinquent Accounts 60 to 89 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 32,763 $ 37,158  
Past due, Percent 1.50% 1.70%  
Delinquent Accounts 60 to 89 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 21,862 $ 23,576  
Past due, Percent 1.30% 1.50%  
Delinquent Accounts 60 to 89 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 10,901 $ 13,582  
Past due, Percent 2.20% 2.50%  
Delinquent Accounts 90 to 119 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 26,497 $ 30,818  
Past due, Percent 1.20% 1.50%  
Delinquent Accounts 90 to 119 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 17,507 $ 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 $ 8,990 $ 11,861  
Past due, Percent 1.80% 2.20%  
Delinquent Accounts 120 to 149 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 24,404 $ 27,765  
Past due, Percent 1.10% 1.30%  
Delinquent Accounts 120 to 149 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 15,506 $ 16,715  
Past due, Percent 0.90% 1.00%  
Delinquent Accounts 120 to 149 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 8,898 $ 11,050  
Past due, Percent 1.80% 2.00%  
Delinquent Accounts 150 to 179 Days [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 24,721 $ 24,258  
Past due, Percent 1.20% 1.10%  
Delinquent Accounts 150 to 179 Days [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 15,094 $ 13,768  
Past due, Percent 0.90% 0.90%  
Delinquent Accounts 150 to 179 Days [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 9,627 $ 10,490  
Past due, Percent 2.00% 1.90%  
Total Delinquency Accounts [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 149,356 $ 161,234  
Past due, Percent 7.00% 7.50%  
Total Delinquency Accounts [Member] | Large Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 97,228 $ 99,956  
Past due, Percent 5.90% 6.30%  
Total Delinquency Accounts [Member] | Small Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Net finance receivables $ 52,128 $ 61,278  
Past due, Percent 10.70% 11.20%