Securities - Schedule of Unrealized Loss and Fair Value on Investments (Details) $ in Thousands	Dec. 31, 2025 USD ($) security	Dec. 31, 2024 USD ($) security
Fair Value
Less Than 12 Months	$ 1,079,884	$ 717,899
12 Months or Longer	961,014	978,673
Total	2,040,898	1,696,572
Unrealized Losses
Less Than 12 Months	(4,059)	(7,996)
12 Months or Longer	(146,326)	(203,342)
Total	$ (150,385)	$ (211,338)
Number of individual securities | security	383	377
U.S. Treasury securities and obligations of U.S. government agencies
Fair Value
Less Than 12 Months	$ 21,846	$ 4,825
12 Months or Longer	13,932	18,060
Total	35,778	22,885
Unrealized Losses
Less Than 12 Months	(31)	(13)
12 Months or Longer	(420)	(509)
Total	(451)	(522)
Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Fair Value
Less Than 12 Months	378,739	648,967
12 Months or Longer	730,551	739,363
Total	1,109,290	1,388,330
Unrealized Losses
Less Than 12 Months	(1,625)	(7,578)
12 Months or Longer	(133,763)	(182,958)
Total	(135,388)	(190,536)
Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Fair Value
Less Than 12 Months	90,765	13,200
12 Months or Longer	95,090	107,041
Total	185,855	120,241
Unrealized Losses
Less Than 12 Months	(61)	(222)
12 Months or Longer	(5,867)	(10,061)
Total	(5,928)	(10,283)
Private mortgage-backed securities and collateralized mortgage obligations
Fair Value
Less Than 12 Months	969	7,178
12 Months or Longer	76,829	101,242
Total	77,798	108,420
Unrealized Losses
Less Than 12 Months	(1)	(16)
12 Months or Longer	(5,009)	(8,366)
Total	(5,010)	(8,382)
CLOs
Fair Value
Less Than 12 Months	211,052	43,410
12 Months or Longer	38,882	7,596
Total	249,934	51,006
Unrealized Losses
Less Than 12 Months	(320)	(152)
12 Months or Longer	(192)	(14)
Total	(512)	(166)
Obligations of state and political subdivisions
Fair Value
Less Than 12 Months	244,168	319
12 Months or Longer	5,730	5,371
Total	249,898	5,690
Unrealized Losses
Less Than 12 Months	(1,445)	(15)
12 Months or Longer	(1,075)	(1,434)
Total	(2,520)	$ (1,449)
Other debt securities
Fair Value
Less Than 12 Months	132,345
12 Months or Longer	0
Total	132,345
Unrealized Losses
Less Than 12 Months	(576)
12 Months or Longer	0
Total	$ (576)