v3.26.1
Loans and Allowance for Credit Losses - Summary of Aging of Loans and Loans Held for Sale (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due $ 100,905 $ 111,530
Total 2,735,054 2,514,825 [1]
Accruing 0 0
Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 2,634,149 2,403,295
30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 53,026 61,802
60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 23,499 25,257
90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 24,380 24,471
Recreation [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 78,439 92,657
Total 1,699,891 1,562,101 [1]
Accruing 0 0
Recreation [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 1,621,452 1,469,444
Recreation [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 47,652 56,911
Recreation [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 21,061 22,890
Recreation [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 9,726 12,856
Home Improvement [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 9,233 8,558
Total 886,047 813,185 [1]
Accruing 0 0
Home Improvement [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 876,814 804,627
Home Improvement [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 5,296 4,891
Home Improvement [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 2,438 2,367
Home Improvement [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 1,499 1,300
Commercial Loans [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 13,035 10,274
Total 126,447 123,216 [1]
Accruing 0 0
Commercial Loans [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 113,412 112,942
Commercial Loans [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Commercial Loans [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Commercial Loans [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 13,035 10,274
Taxi Medallion [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 198 41
Total 1,293 1,179 [1]
Accruing 0 0
Taxi Medallion [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 1,095 1,138
Taxi Medallion [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 78 0
Taxi Medallion [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Taxi Medallion [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 120 41
Strategic Partnership [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Total 21,376 15,144 [1]
Accruing 0 0
Strategic Partnership [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 21,376 15,144
Strategic Partnership [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Strategic Partnership [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Strategic Partnership [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due $ 0 $ 0
[1] Excludes $52.0 million of capitalized loan origination costs.