Securities - Schedule of Held-to-maturity, Unrealized Loss on Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Held-to-maturity:
12 Months or Greater, Fair Value	$ 161,211	$ 262,536
12 Months or Greater, Gross Unrealized Losses	$ (18,956)	$ (18,698)
12 Months or Greater, Number of Securities	55	57
Total, Fair Value	$ 161,211	$ 262,536
Total, Gross Unrealized Losses	$ (18,956)	$ (18,698)
Total, Number of Securities	55	57
US Treasury Securities [Member]
Held-to-maturity:
12 Months or Greater, Fair Value	$ 49,802	$ 148,584
12 Months or Greater, Gross Unrealized Losses	$ (227)	$ (1,482)
12 Months or Greater, Number of Securities	2	4
Total, Fair Value	$ 49,802	$ 148,584
Total, Gross Unrealized Losses	$ (227)	$ (1,482)
Total, Number of Securities	2	4
US Government-sponsored Enterprises Debt Securities [Member]
Held-to-maturity:
12 Months or Greater, Fair Value	$ 41,135	$ 42,194
12 Months or Greater, Gross Unrealized Losses	$ (7,897)	$ (7,143)
12 Months or Greater, Number of Securities	13	13
Total, Fair Value	$ 41,135	$ 42,194
Total, Gross Unrealized Losses	$ (7,897)	$ (7,143)
Total, Number of Securities	13	13
Municipal securities [Member]
Held-to-maturity:
12 Months or Greater, Fair Value	$ 45,840	$ 46,500
12 Months or Greater, Gross Unrealized Losses	$ (6,582)	$ (6,178)
12 Months or Greater, Number of Securities	35	35
Total, Fair Value	$ 45,840	$ 46,500
Total, Gross Unrealized Losses	$ (6,582)	$ (6,178)
Total, Number of Securities	35	35
Mortgage-backed securities (GSEs) [Member]
Held-to-maturity:
12 Months or Greater, Fair Value	$ 24,434	$ 25,258
12 Months or Greater, Gross Unrealized Losses	$ (4,250)	$ (3,895)
12 Months or Greater, Number of Securities	5	5
Total, Fair Value	$ 24,434	$ 25,258
Total, Gross Unrealized Losses	$ (4,250)	$ (3,895)
Total, Number of Securities	5	5