Repurchase Agreements (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial Instruments Pledged as Collateral [Abstract]
Debt securities available-for-sale	$ 1,135,878	$ 1,256,226
Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	232,577	215,431
Securities Sold under Agreements to Repurchase [Member] | Asset Pledged as Collateral [Member]
Financial Instruments Pledged as Collateral [Abstract]
Debt securities available-for-sale	294,700	273,800
Overnight and Continuous [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	146,668	136,574
Up to 30 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	0	500
30-90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	2,358	65,000
Greater Than 90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	83,551	13,357
U.S. Treasury and Government Agencies [Member]
Financial Instruments Pledged as Collateral [Abstract]
Debt securities available-for-sale	351,339	381,932
U.S. Treasury and Government Agencies [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	44,669	26,524
U.S. Treasury and Government Agencies [Member] | Overnight and Continuous [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	20,374	21,679
U.S. Treasury and Government Agencies [Member] | Up to 30 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	0	34
U.S. Treasury and Government Agencies [Member] | 30-90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	39	2,979
U.S. Treasury and Government Agencies [Member] | Greater Than 90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	24,256	1,832
State and Political Subdivisions [Member]
Financial Instruments Pledged as Collateral [Abstract]
Debt securities available-for-sale	244,478	265,102
State and Political Subdivisions [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	112,422	108,867
State and Political Subdivisions [Member] | Overnight and Continuous [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	103,232	96,627
State and Political Subdivisions [Member] | Up to 30 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	0	466
State and Political Subdivisions [Member] | 30-90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	1,760	9,634
State and Political Subdivisions [Member] | Greater Than 90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	7,430	2,140
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Financial Instruments Pledged as Collateral [Abstract]
Debt securities available-for-sale	452,298	520,085
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	73,951	79,736
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Overnight and Continuous [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	21,527	17,964
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Up to 30 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	0	0
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | 30-90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	559	52,387
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Greater Than 90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	51,865	9,385
Asset-backed Securities [Member]
Financial Instruments Pledged as Collateral [Abstract]
Debt securities available-for-sale	87,763	89,107
Asset-backed Securities [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	1,535	304
Asset-backed Securities [Member] | Overnight and Continuous [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	1,535	304
Asset-backed Securities [Member] | Up to 30 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	0	0
Asset-backed Securities [Member] | 30-90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	0	0
Asset-backed Securities [Member] | Greater Than 90 Days [Member] | Securities Sold under Agreements to Repurchase [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	$ 0	$ 0