Business Combinations (Details) - USD ($) $ in Thousands |
Aug. 01, 2024 |
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
|---|---|---|---|---|
| Business Combination [Line Items] | ||||
| Assets | $ 74,668,135 | $ 71,142,046 | $ 68,983,318 | |
| Deposits | $ 61,141,275 | $ 57,717,191 | $ 55,816,811 | |
| Macatawa Bank Corporation | ||||
| Business Combination [Line Items] | ||||
| Assets | $ 2,900,000 | |||
| Deposits | 2,300,000 | |||
| Loan | $ 1,300,000 | |||
| Macatawa Bank Corporation | ||||
| Business Combination [Line Items] | ||||
| Business acquisition, number of shares issued (in shares) | 4,700,000 | |||
| Fair value of consideration paid | $ 499,300 | |||
| Business combination, discount on acquired loans | 53,700 | |||
| Business combination, discount on securities | 33,500 | |||
| Business combination, intangible assets acquired | $ 253,000 | |||
| Macatawa Bank Corporation | Macatawa Bank Corporation | ||||
| Business Combination [Line Items] | ||||
| Number of common stock shares issued for each share of acquiree stock (in shares) | 0.137 |
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- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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/exampleRef
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- 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
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- 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
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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://www.xbrl.org/2003/role/disclosureRef
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Business Acquisition, Number of Common Stock Shares Issued For Each Share of Acquiree Stock No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Financing Receivable, Unamortized Purchase Premium (Discount) No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Marketable Securities, Unamortized Purchase Premium (Discount) No definition available.
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