Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Pre-Tax Amount
Change in net unrealized gains (losses) on available-for-sale debt securities	$ 14,060	$ (48,261)
Change in interest rate swap	6,080	(2,601)
Adjustment to funded status of employee benefit plans	(475)	(12)
Other Comprehensive Income (Loss)	19,665	(50,874)
Tax Benefit
Change in net unrealized gains (losses) on available-for-sale debt securities	(3,001)	10,332
Change in interest rate swap	(1,298)	557
Adjustment to funded status of employee benefit plans	101	32
Other Comprehensive Income (Loss)	(4,198)	10,921
Net of Tax Amount
Change in net unrealized gains (losses) on available-for-sale debt securities	11,059	(37,929)
Change in interest rate swap	4,782	(2,044)
Adjustment to funded status of employee benefit plans	(374)	20
Other Comprehensive Income (Loss)	$ 15,467	$ (39,953)