Investment Securities - Schedule of Gross Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Abstract]
Fair Value, Less than 12 months	$ 706,684	$ 740,244
Gross Unrealized Loss , Less than 12 months	(8,542)	(13,259)
Fair Value, 12 months or more	592,743	566,013
Gross Unrealized Loss , 12 months or more	(120,221)	(128,715)
Fair Value, Total	1,299,427	1,306,257
Gross Unrealized Loss , Total	(128,763)	(141,974)
U.S. government agency securities
Debt Securities, Available-for-sale [Abstract]
Fair Value, Less than 12 months	463,989	494,885
Gross Unrealized Loss , Less than 12 months	(1,603)	(1,908)
Fair Value, 12 months or more	30,129	714
Gross Unrealized Loss , 12 months or more	(288)	(9)
Fair Value, Total	494,118	495,599
Gross Unrealized Loss , Total	(1,891)	(1,917)
Mortgage-backed securities - residential
Debt Securities, Available-for-sale [Abstract]
Fair Value, Less than 12 months	206,838	209,078
Gross Unrealized Loss , Less than 12 months	(3,976)	(8,956)
Fair Value, 12 months or more	441,419	441,502
Gross Unrealized Loss , 12 months or more	(97,375)	(108,321)
Fair Value, Total	648,257	650,580
Gross Unrealized Loss , Total	(101,351)	(117,277)
Mortgage-backed securities - commercial
Debt Securities, Available-for-sale [Abstract]
Fair Value, Less than 12 months	2,216	2,222
Gross Unrealized Loss , Less than 12 months	(12)	(19)
Fair Value, 12 months or more	12,612	12,635
Gross Unrealized Loss , 12 months or more	(884)	(1,089)
Fair Value, Total	14,828	14,857
Gross Unrealized Loss , Total	(896)	(1,108)
Municipal securities
Debt Securities, Available-for-sale [Abstract]
Fair Value, Less than 12 months	33,641	34,059
Gross Unrealized Loss , Less than 12 months	(2,951)	(2,376)
Fair Value, 12 months or more	107,585	110,173
Gross Unrealized Loss , 12 months or more	(21,672)	(19,285)
Fair Value, Total	141,226	144,232
Gross Unrealized Loss , Total	(24,623)	(21,661)
Corporate securities
Debt Securities, Available-for-sale [Abstract]
Fair Value, Less than 12 months	0	0
Gross Unrealized Loss , Less than 12 months	0	0
Fair Value, 12 months or more	998	989
Gross Unrealized Loss , 12 months or more	(2)	(11)
Fair Value, Total	998	989
Gross Unrealized Loss , Total	$ (2)	$ (11)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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