Related party transactions - Schedule of Consolidated Balance Sheets (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Related Party Transaction [Line Items] | ||
| Deposits | $ 12,698,068 | $ 12,745,909 |
| Accrued interest and other liabilities | 170,509 | 189,799 |
| Directors and Executives | ||
| Related Party Transaction [Line Items] | ||
| Deposits | 92,182 | 92,182 |
| Wholly-owned subsidiary | ||
| Related Party Transaction [Line Items] | ||
| Loans | 8,884 | 9,056 |
| Deposits | 545 | 811 |
| Accrued interest and other liabilities | 175 | 167 |
| Related Party | ||
| Related Party Transaction [Line Items] | ||
| Deposits | 9,365 | 9,441 |
| Accrued interest and other assets | $ 461 | $ 0 |
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- Definition Other Liabilities, Miscellaneous No definition available.
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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of interest receivable and assets classified as other. No definition available.
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- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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