Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest related to financial assets held at amortized cost	$ 335,400	$ 307,800	$ 332,800
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable and other	Accrued interest receivable and other	Accrued interest receivable and other
Nonaccrual loans with no related allowance for credit losses	$ 45,700
Provision for credit losses	24,000	$ 21,691
Allowance for credit loss, macroeconomic uncertainty overlay	35,900
Loan net charge-offs	12,600	21,800
Provision for credit losses	(11)	18
Foreclosed residential real estate properties	0
Commitments to lend	15,600	$ 4,200
Financing Receivable \| Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded investment, foreclosure proceedings in process	$ 65,100		$ 49,600

Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at amortized cost (held-to-maturity).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Amount, after allowance for credit loss, of accrued interest on financial asset measured at amortized cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Indicates line item in statement of financial position that includes accrued interest, after allowance for credit loss, on financial asset measured at amortized cost.

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

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Amount of commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Macroeconomic Uncertainty Overlay

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Other Real Estate, Foreclosed Assets And Repossessed Assets, In Process

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