Acquisition of First Foundation Inc. - Schedule of Fair Values of the Assets Acquired and Liabilities Assumed in this Transaction (Details) - USD ($) $ in Thousands |
Apr. 01, 2026 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|---|---|---|---|
| Business Combination [Line Items] | |||||||
| Goodwill | $ 102,536 | $ 93,483 | $ 93,483 | $ 93,483 | $ 93,483 | $ 93,483 | |
| First Foundation | |||||||
| Business Combination [Line Items] | |||||||
| Cash and cash equivalents | $ 1,744,217 | ||||||
| Investment securities | 2,851,696 | ||||||
| Loans held-for-sale | 1,121,702 | ||||||
| Loans | 4,835,795 | ||||||
| Premises and equipment | 41,292 | ||||||
| Bank-owned life insurance | 51,765 | ||||||
| Core deposits and other intangible assets | 90,214 | ||||||
| Accrued interest receivable | 38,032 | ||||||
| Deferred tax assets | 220,280 | ||||||
| Prepaid expenses and other assets | 189,720 | ||||||
| Total assets acquired | 11,184,713 | ||||||
| Deposits | 8,772,082 | ||||||
| Borrowings | 1,453,657 | ||||||
| Subordinated debt, net | 167,559 | ||||||
| Accrued expenses and other liabilities | 96,900 | ||||||
| Total liabilities assumed | 10,490,198 | ||||||
| Fair value of net assets acquired | 694,515 | ||||||
| Purchase price | 703,568 | ||||||
| Goodwill | $ 9,053 |
| X | ||||||||||
- Definition Business Combination, Recognized Asset Acquired, Bank Owned Life Insurance No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Asset Acquired, Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Asset Acquired, Financing Receivable, Held-for-Sale No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Asset Acquired, Interest Receivable No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Liability Assumed,, Accrued Expenses And Other Liabilities No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Liability Assumed, Borrowings No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Liability Assumed, Deposits No definition available.
|
| X | ||||||||||
- Definition Business Combination, Recognized Liability Assumed, Subordinated Debt No definition available.
|
| 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/exampleRef
|
| X | ||||||||||
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalent acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of investment in debt and equity securities acquired in business combination and recognized at acquisition date, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of prepaid expense and asset classified as other, acquired in business combination and recognized at acquisition date, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of deferred tax asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of identifiable intangible asset acquired in business combination and recognized at acquisition date. Excludes goodwill and financial asset. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of liability assumed in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of asset acquired in excess of (less than) liability assumed in business combination and recognized at acquisition date. Excludes goodwill. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of property, plant, and equipment acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|