Accumulated Other Comprehensive (Loss) Income - Components of Accumulated Other Comprehensive (Loss) Income, Net of Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	$ (62,104)
Other comprehensive (loss) income	6,554	$ (15,556)
Ending balance	(55,550)
Net Unrealized Holding (Losses) Gains on Available-for-Sale Investment Securities [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(40,066)	(1,216)
Other comprehensive (loss) income	4,491	(15,842)
Ending balance	(35,575)	(17,058)
Net Change Related to Derivatives Used for Cash Flow Hedge [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(6,831)	(159)
Other comprehensive (loss) income	1,869	114
Ending balance	(4,962)	(45)
Net Change Related to Defined Benefit Pension Plan [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(15,207)	(14,978)
Other comprehensive (loss) income	194	172
Ending balance	(15,013)	(14,806)
Accumulated Other Comprehensive (Loss) Income [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(62,104)	(16,353)
Other comprehensive (loss) income	6,554	(15,556)
Ending balance	$ (55,550)	$ (31,909)