Derivative Financial Instruments - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Maximum length of time hedged in cash flow hedge	2 years 8 months 12 days
Credit exposure to settled variation margin in excess of customer related interest rate swap	$ 100,000	$ 400,000
Derivative, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Other	Other	Other
Derivative, notional amount	$ 2,400,000,000	$ 2,400,000,000
Loan Origination Commitments
Derivative [Line Items]
Derivative, notional amount	15,700,000	10,500,000
Forward Contracts
Derivative [Line Items]
Derivative, notional amount	6,400,000	9,200,000
Cleared Derivative Transaction
Derivative [Line Items]
Additional collateral posted	88,000,000.0	85,900,000
Non Cleared Derivative Transactions | Customer Related Interest Rate Swap Derivatives
Derivative [Line Items]
Additional collateral posted	0	3,000,000.0
Fair value of interest rate swap liabilities that are net in a net liability position	0	$ 1,900,000
Interest Income | Active Cash Flow Hedges
Derivative [Line Items]
Interest rate swap cash flow hedges amount expected to reclassified from other comprehensive income to income statement in the next twelve months (less than for amounts related to terminated cash flow hedges)	$ 24,700,000