Derivative Financial Instruments - Additional information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Derivative [Line Items]
Maximum length of time hedged in cash flow hedge			3 years
Credit exposure to settled variation margin in excess of customer related interest rate swap	$ 100,000		$ 100,000		$ 400,000
Notional Amount	2,400,000,000		2,400,000,000		2,400,000,000
Derivative, gain (loss) on derivative, net (less than during the three months ended June 30, 2024)	100,000	$ (100,000)	(100,000)	$ (100,000)
Derivative asset	51,475,000		51,475,000		20,456,000
Derivative liability	78,858,000		78,858,000		63,075,000
Loan Origination Commitments
Derivative [Line Items]
Notional Amount	15,900,000		15,900,000		10,500,000
Derivative asset	100,000		100,000		100,000
Derivative liability	100,000		100,000		100,000
Forward Contracts
Derivative [Line Items]
Notional Amount	16,300,000		16,300,000		9,200,000
Non Cleared Derivative Transactions | Customer Related Interest Rate Swap Derivatives
Derivative [Line Items]
Additional collateral posted	0		0		3,000,000.0
Fair value of interest rate swap liabilities that are net in a net liability position	0		0		1,900,000
Restricted Assets | Cleared Derivative Transaction
Derivative [Line Items]
Additional collateral posted	87,800,000		87,800,000		$ 85,900,000
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	$ 17,900,000		$ 17,900,000