Derivative Instruments - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Maximum notional contract amount as percent of total assets	25.00%		25.00%
Interest income, investment securities	$ 37,464,000	$ 53,220,000	$ 131,619,000	$ 166,271,000
Fair Value Hedges
Derivatives, Fair Value [Line Items]
Derivative, average variable interest rate	1.21%		1.21%		1.21%
Interest income, investment securities			$ 24,200,000
Derivative liabilities, Notional	$ 325,000,000		325,000,000		$ 0
Derivative assets, notional amount	1,001,715,000		1,001,715,000		$ 1,001,715,000
Risk Participation Agreements
Derivatives, Fair Value [Line Items]
Derivative, notional amount	13,100,000		13,100,000
Energy Related Derivative
Derivatives, Fair Value [Line Items]
Derivative liabilities, Notional	0		0
Derivative assets, notional amount	$ 0		$ 0