Investment Securities - Cost and Equity Method Investments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Investment [Line Items]
Federal home loan bank stock	$ 17,754,000	$ 11,197,000
Federal reserve bank stock	14,653,000	14,653,000
Equity Securities, FV-NI	2,089,000	1,859,000
Equity Securities without Readily Determinable Fair Value, Amount	15,921,000	14,725,000
Alternative Investment	45,885,000	44,657,000
Other Investments and Securities, at Cost	96,302,000	87,091,000
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount	$ 0	$ 871,000
equity investment shares sold	116,722	22,160	86,770
Proceeds from Sale of Federal Home Loan Bank Stock	$ 11,672,000	$ 2,216,000	$ 8,677,000
equity investment purchased, shares	182,289	0	0
Gain on equity securities, net	$ 971,000	$ 2,955,000	$ 5,011,000
Alternative Investment, income recognized	371,000	2,400,000	4,500,000
Investments [Member]
Investment [Line Items]
Gain on equity securities, net	$ 600,000	$ 601,000	$ 552,000