Securities - HTM in an Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($) item
Number of Securities
Unrealized loss for less than twelve months | item	8	39
Unrealized loss for twelve months or longer | item	293	257
Total | item	301	296
Fair Value
Unrealized loss for less than twelve months	$ 4,305	$ 15,506
Unrealized loss for twelve months or longer	642,341	730,607
Total	646,646	746,113
Unrealized Losses
Unrealized loss for less than twelve months	24	479
Unrealized loss for twelve months or longer	88,035	80,489
Total	$ 88,059	$ 80,968
Residential mortgage-backed securities
Number of Securities
Unrealized loss for twelve months or longer | item	45	44
Total | item	45	44
Fair Value
Unrealized loss for twelve months or longer	$ 224,258	$ 278,172
Total	224,258	278,172
Unrealized Losses
Unrealized loss for twelve months or longer	31,621	25,765
Total	$ 31,621	$ 25,765
Commercial mortgage-backed securities
Number of Securities
Unrealized loss for twelve months or longer | item	26	31
Total | item	26	31
Fair Value
Unrealized loss for twelve months or longer	$ 137,009	$ 160,208
Total	137,009	160,208
Unrealized Losses
Unrealized loss for twelve months or longer	10,688	12,670
Total	$ 10,688	$ 12,670
Collateralized mortgage obligations
Number of Securities
Unrealized loss for twelve months or longer | item	53	54
Total | item	53	54
Fair Value
Unrealized loss for twelve months or longer	$ 218,961	$ 247,019
Total	218,961	247,019
Unrealized Losses
Unrealized loss for twelve months or longer	38,269	37,189
Total	$ 38,269	$ 37,189
States and political subdivisions
Number of Securities
Unrealized loss for less than twelve months | item	8	39
Unrealized loss for twelve months or longer | item	169	128
Total | item	177	167
Fair Value
Unrealized loss for less than twelve months	$ 4,305	$ 15,506
Unrealized loss for twelve months or longer	62,113	45,208
Total	66,418	60,714
Unrealized Losses
Unrealized loss for less than twelve months	24	479
Unrealized loss for twelve months or longer	7,457	4,865
Total	$ 7,481	$ 5,344