Derivative Financial Instruments - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Derivative [Line Items]
Maximum length of time hedged in cash flow hedge	3 years 6 months
Credit exposure to settled variation margin in excess of customer related interest rate swap	$ 400,000		$ 400,000
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other
Notional Amount	$ 2,400,000,000		2,400,000,000
Derivative, loss on derivative, net	100,000	$ 100,000
Derivative asset	22,316,000		20,456,000
Derivative liability	73,981,000		63,075,000
Loan Origination Commitments
Derivative [Line Items]
Notional Amount	9,100,000		10,500,000
Derivative asset	100,000		100,000
Derivative liability	100,000		100,000
Forward Contracts
Derivative [Line Items]
Notional Amount	8,000,000		9,200,000
Cleared Derivative Transaction
Derivative [Line Items]
Additional collateral posted	85,900,000		85,900,000
Non Cleared Derivative Transactions | Customer Related Interest Rate Swap Derivatives
Derivative [Line Items]
Additional collateral posted	1,400,000		3,000,000
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	$ 44,900,000