v3.26.1
Loans and Allowance for Credit Losses - Summary of Aging of Loans and Loans Held for Sale (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due $ 99,501 $ 111,530
Total 2,563,656 2,514,825 [1]
Accruing 0 0
Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 2,464,155 2,403,295
30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 59,122 61,802
60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 19,513 25,257
90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 20,866 24,471
Recreation [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 78,590 92,657
Total 1,614,849 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 1,536,259 1,469,444
Recreation [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 51,701 56,911
Recreation [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 17,693 22,890
Recreation [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 9,196 12,856
Home Improvement [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 7,802 8,558
Total 817,143 813,185 [1]
Accruing 0 0
Home Improvement [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 809,341 804,627
Home Improvement [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 4,586 4,891
Home Improvement [Member] | 60-89 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 1,820 2,367
Home Improvement [Member] | 90+ [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 1,396 1,300
Commercial Loans [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 13,109 10,274
Total 119,752 123,216 [1]
Accruing 0 0
Commercial Loans [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 106,643 112,942
Commercial Loans [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 2,835 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 10,274 10,274
Taxi Medallion [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 41
Total 1,126 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 1,126 1,138
Taxi Medallion [Member] | 30-59 [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 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 0 41
Strategic Partnership [Member]    
Financing Receivable Recorded Investment Past Due [Line Items]    
Past Due 0 0
Total 10,786 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 10,786 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.