Goodwill and Core Deposits and Other Intangibles - Summary of Carrying Amount and Accumulated Amortization of Core Deposits and Other Intangibles (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||||
| Gross carrying basis | $ 128,888 | $ 128,888 | ||
| Accumulated amortization | (98,533) | (96,595) | ||
| Net carrying amount | $ 30,355 | $ 32,293 | $ 38,280 | $ 40,327 |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|