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Loans - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Loans [Line Items]
Net deferred loan fees and costs and fair value purchase accounting adjustments	$ 77,900	$ 78,200
Outstanding borrowings from FHLB	3,451,309	3,151,309
Federal Agency Borrowings
Loans [Line Items]
Loans pledged as collateral	28,300,000	23,700,000
Federal Home Loan Bank Advances
Loans [Line Items]
Loans pledged as collateral	16,000,000
Federal Reserve Bank Advances
Loans [Line Items]
Loans pledged as collateral	12,300,000
Premium finance receivables—property & casualty
Loans [Line Items]
Unearned income portions of premium finance receivables	$ 268,600	$ 267,700

X

- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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- Definition

Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote, to be recognized as service income.

+ References

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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

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Fair value of the securities pledged as collateral against securities loaned.

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Loans [Line Items]

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