Deposits - Summary of Balances of Deposits (Detail) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Deposits [Abstract] | ||
| Noninterest-bearing demand | $ 2,606,809 | $ 2,594,032 |
| Interest-bearing demand | 1,849,252 | 1,784,769 |
| Savings | 2,769,758 | 2,775,058 |
| Time certificates, $250,000 or more | 518,780 | 484,858 |
| Other time certificates | 624,231 | 625,184 |
| Total deposits | $ 8,368,830 | $ 8,263,901 |
| X | ||||||||||
- Definition Other time certificates deposits. No definition available.
|
| X | ||||||||||
- Definition Time deposits 250000 or more. No definition available.
|
| X | ||||||||||
- 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://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of money in interest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|