Securities - Narrative (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Debt Securities, Available-for-sale [Line Items] | |||||
| Securities | $ 2,225,628,000 | $ 2,225,628,000 | $ 2,084,569,000 | ||
| Proceeds from sales, redemptions and calls of debt securities available for sale | 198,220,000 | $ 0 | 333,719,000 | $ 0 | |
| Allowance for credit losses | 0 | 0 | 0 | ||
| Equity securities, original costs | 2,400,000 | 2,400,000 | 2,500,000 | ||
| Equity securities with readily determinable fair value not held for trading | 2,435,000 | 2,435,000 | 2,548,000 | ||
| Unrealized gain (loss) | 0 | $ 0 | 0 | $ 0 | |
| Pledged as Collateral | |||||
| Debt Securities, Available-for-sale [Line Items] | |||||
| Securities pledged as collateral | 44,000,000.0 | 44,000,000.0 | 62,700,000 | ||
| Debt Security, Corporate, Non-US | |||||
| Debt Securities, Available-for-sale [Line Items] | |||||
| Securities | 0 | 0 | 0 | ||
| US Government | |||||
| Debt Securities, Available-for-sale [Line Items] | |||||
| Allowance for credit losses | $ 0 | $ 0 | $ 0 | ||
| X | ||||||||||
- Definition Proceeds From Sale, Redemption And Calls Of Debt Securities Available-For-Sale No definition available.
|
| X | ||||||||||
- Definition Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|