Securities - Debt Securities, Held-to-Maturity (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	$ 449,721,000	$ 476,647,000
Unrealized Gains	0	0
Unrealized Losses	(44,899,000)	(53,421,000)
Allowance for Credit Losses	0	0
Fair Value	404,822,000	423,226,000
Government-sponsored residential mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	254,752,000	276,493,000
Unrealized Gains	0	0
Unrealized Losses	(24,433,000)	(30,150,000)
Allowance for Credit Losses	0	0
Fair Value	230,319,000	246,343,000
Government-sponsored commercial mortgage-backed securities
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	194,969,000	200,154,000
Unrealized Gains	0	0
Unrealized Losses	(20,466,000)	(23,271,000)
Allowance for Credit Losses	0	0
Fair Value	$ 174,503,000	$ 176,883,000