Loans and Allowance for Credit Losses - Schedule of Loan Delinquency for Recreation and Home Improvement Loans (Detail) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
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|---|---|---|---|---|---|---|---|---|
| Recreation [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | $ 435,498 | |||||||
| 2024 | 356,392 | $ 488,328 | ||||||
| 2023 | 256,680 | 327,468 | ||||||
| 2022 | 227,028 | 294,178 | ||||||
| 2021 | 142,693 | 182,795 | ||||||
| 2020 | 77,337 | |||||||
| Prior | 143,810 | 122,434 | ||||||
| Total | 1,562,101 | [1] | 1,492,540 | [2] | ||||
| Recreation [Member] | Financial Asset, Not Past Due [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 423,427 | |||||||
| 2024 | 335,079 | 475,880 | ||||||
| 2023 | 237,917 | 306,719 | ||||||
| 2022 | 209,204 | 272,495 | ||||||
| 2021 | 132,704 | 169,808 | ||||||
| 2020 | 72,760 | |||||||
| Prior | 131,113 | 110,315 | ||||||
| Total | 1,469,444 | [1] | 1,407,977 | [2] | ||||
| Recreation [Member] | 30-59 [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 8,210 | |||||||
| 2024 | 12,763 | 8,009 | ||||||
| 2023 | 11,042 | 12,511 | ||||||
| 2022 | 10,623 | 13,748 | ||||||
| 2021 | 6,061 | 8,563 | ||||||
| 2020 | 3,129 | |||||||
| Prior | 8,212 | 8,209 | ||||||
| Total | 56,911 | [1] | 54,169 | [2] | ||||
| Recreation [Member] | 60-89 [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 2,374 | |||||||
| 2024 | 5,414 | 3,139 | ||||||
| 2023 | 4,918 | 5,272 | ||||||
| 2022 | 4,872 | 5,136 | ||||||
| 2021 | 2,581 | 3,010 | ||||||
| 2020 | 998 | |||||||
| Prior | 2,731 | 2,821 | ||||||
| Total | 22,890 | [1] | 20,376 | [2] | ||||
| Recreation [Member] | 90+ [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 1,487 | |||||||
| 2024 | 3,136 | 1,300 | ||||||
| 2023 | 2,803 | 2,966 | ||||||
| 2022 | 2,329 | 2,799 | ||||||
| 2021 | 1,347 | 1,414 | ||||||
| 2020 | 450 | |||||||
| Prior | 1,754 | 1,089 | ||||||
| Total | 12,856 | [1] | 10,018 | [2] | ||||
| Home Improvement [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 194,852 | |||||||
| 2024 | 174,886 | 261,343 | ||||||
| 2023 | 154,104 | 200,773 | ||||||
| 2022 | 153,027 | 190,563 | ||||||
| 2021 | 72,566 | 93,241 | ||||||
| 2020 | 44,866 | |||||||
| Prior | 63,750 | 40,291 | ||||||
| Total | 813,185 | [1] | 831,077 | [2] | ||||
| Home Improvement [Member] | Financial Asset, Not Past Due [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 193,964 | |||||||
| 2024 | 172,735 | 259,794 | ||||||
| 2023 | 151,637 | 197,832 | ||||||
| 2022 | 151,365 | 187,789 | ||||||
| 2021 | 71,812 | 92,249 | ||||||
| 2020 | 44,253 | |||||||
| Prior | 63,114 | 39,935 | ||||||
| Total | 804,627 | [1] | 821,852 | [2] | ||||
| Home Improvement [Member] | 30-59 [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 535 | |||||||
| 2024 | 980 | 1,064 | ||||||
| 2023 | 1,609 | 1,665 | ||||||
| 2022 | 876 | 1,616 | ||||||
| 2021 | 513 | 445 | ||||||
| 2020 | 422 | |||||||
| Prior | 378 | 195 | ||||||
| Total | 4,891 | [1] | 5,407 | [2] | ||||
| Home Improvement [Member] | 60-89 [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 353 | |||||||
| 2024 | 761 | 289 | ||||||
| 2023 | 441 | 884 | ||||||
| 2022 | 455 | 654 | ||||||
| 2021 | 199 | 344 | ||||||
| 2020 | 154 | |||||||
| Prior | 158 | 107 | ||||||
| Total | 2,367 | [1] | 2,432 | [2] | ||||
| Home Improvement [Member] | 90+ [Member] | ||||||||
| Financing Receivable, Past Due [Line Items] | ||||||||
| 2025 | 0 | |||||||
| 2024 | 410 | 196 | ||||||
| 2023 | 417 | 392 | ||||||
| 2022 | 331 | 504 | ||||||
| 2021 | 42 | 203 | ||||||
| 2020 | 37 | |||||||
| Prior | 100 | 54 | ||||||
| Total | $ 1,300 | [1] | $ 1,386 | [2] | ||||
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