Derivatives and Hedging Activities - Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cumulative basis adjustments for fair value hedges
Amortized cost of the Hedged Assets	$ 3,242,878	$ 3,807,239
Hedged Asset, Statement of Financial Position [Extensible Enumeration]	Debt securities, available-for-sale
Amortized Cost of Fair Value Hedging Included in the Carrying Amount of the Hedged Assets	$ (9,287)	17,988
Interest rate Swap
Notional and estimated fair value amount of derivative positions
Notional Amount	1,630,500	1,500,000
Asset Derivative	9,287	0
Liability Derivative	$ 0	$ 17,988
Remaining Maturity	1 year 2 months 12 days	2 years 1 month 6 days
Pay Rate	3.68%	4.63%
Interest rate Swap | Interest income on investment securities
Fair value hedge relationships on the income statement
Gain (loss) on fair value hedges recognized in earnings	$ 20,743	$ (16,447)
AFS debt securities | Interest income on investment securities
Fair value hedge relationships on the income statement
Gain (loss) on fair value hedges recognized in earnings	$ (7,451)	$ 17,988