Debt Securities - Narrative (Details) $ in Thousands		12 Months Ended
	Jan. 01, 2022 USD ($)	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale [Line Items]
AFS transferred to held-to-maturity classifications, fair value	$ 1,250,000
Net unrealized after tax loss from transfer of AFS to held-to-maturity classification	$ 11,500	$ 7,000
Debt securities available for sale		795,134	$ 1,153,547
Interest receivable		$ 29,768	$ 27,090
Securities in continuous unrealized loss position | security		323	594
Accumulated unrealized losses		$ 78,201	$ 108,356
Asset Pledged as Collateral without Right
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale		1,160,000	690,200
U.S. Government agencies and corporations
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale			$ 7,345
Securities in continuous unrealized loss position | security			8
Accumulated unrealized losses			$ 253
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale		$ 130,139	$ 285,356
Securities in continuous unrealized loss position | security		149	380
Accumulated unrealized losses		$ 9,345	$ 18,244
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale		$ 5,311	$ 5,944
Securities in continuous unrealized loss position | security		19	27
Accumulated unrealized losses		$ 142	$ 232
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale		$ 169,196	$ 147,193
Securities in continuous unrealized loss position | security		20	20
Accumulated unrealized losses		$ 21,108	$ 25,375
Mortgage backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Accumulated unrealized losses		21,300
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale		$ 50,437
Securities in continuous unrealized loss position | security		2
Accumulated unrealized losses		$ 239
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Debt securities available for sale		$ 440,051	$ 707,709
Securities in continuous unrealized loss position | security		133	159
Accumulated unrealized losses		$ 47,367	$ 64,252
Debt Securities Available For Sale Securities
Debt Securities, Available-for-sale [Line Items]
Interest receivable		5,500	7,600
Held To Maturity Debt Securities
Debt Securities, Available-for-sale [Line Items]
Interest receivable		$ 3,700	$ 3,700