Derivative Instruments - Schedule of Notional and Fair Value Amounts of Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ (6,967)	$ (19,186)
Fair Value Hedges
Derivatives, Fair Value [Line Items]
Derivative assets, weighted average pay rate	1.21%		1.21%
Derivative assets, notional amount	$ 1,001,715		$ 1,001,715
Derivative assets, fair value	61,119		59,829
Derivative liabilities, Notional	325,000		325,000
Derivative liabilities, Fair Value	5,408		3,337
Carrying Amount of Hedged Assets	967,974		970,976
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets	$ 61,302		$ 60,013
Hedged Asset Statement Of Financial Position [Extensible Enumeration]	Available-for-sale securities		Available-for-sale securities
Carrying Amount of Hedged Liabilities	$ 315,700		$ 317,714
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Liabilities	$ (5,568)		$ (3,455)
Hedged Liability, Statement of Financial Position [Extensible Enumeration]	Subordinated notes and debentures		Subordinated notes and debentures
Fair Value Hedges | Minimum
Derivatives, Fair Value [Line Items]
Derivative liabilities, Receive Rate	3.07%
Fair Value Hedges | Maximum
Derivatives, Fair Value [Line Items]
Derivative liabilities, Receive Rate	3.56%
Cash Flow Hedges | Variable rate loans
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	$ 1,000,000		$ 1,000,000
Derivative assets, fair value	(7,962)		(919)
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ (7,042)	0
Cash Flow Hedges | Variable rate loans | Minimum
Derivatives, Fair Value [Line Items]
Derivative liabilities, Receive Rate	3.18%
Cash Flow Hedges | Variable rate loans | Maximum
Derivatives, Fair Value [Line Items]
Derivative liabilities, Receive Rate	4.05%
Cash Flow Hedges | Variable rate commercial MBS
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	$ 300,000		300,000
Derivative assets, fair value	(897)		317
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ (1,214)	$ 0
Cash Flow Hedges | Variable rate commercial MBS | Minimum
Derivatives, Fair Value [Line Items]
Derivative liabilities, Receive Rate	3.07%
Cash Flow Hedges | Variable rate commercial MBS | Maximum
Derivatives, Fair Value [Line Items]
Derivative liabilities, Receive Rate	3.82%
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	$ 1,381,209		1,190,958
Derivative assets, fair value	22,379		26,734
Derivative liabilities, Notional	1,382,101		1,191,858
Derivative liabilities, Fair Value	$ 22,326		$ 26,682