Accumulated Other Comprehensive (Loss) Income - Components of Accumulated Other Comprehensive (Loss) Income, Net of Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	$ (16,353)
Other comprehensive (loss) income	(15,556)	$ 1,704
Ending balance	(31,909)
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	(1,216)	(1,379)
Other comprehensive (loss) income	(15,842)	1,379
Ending balance	(17,058)	0
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	(159)	(421)
Other comprehensive (loss) income	114	65
Ending balance	(45)	(356)
Net Change Related to Defined Benefit Pension Plan [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(14,978)	(20,344)
Other comprehensive (loss) income	172	260
Ending balance	(14,806)	(20,084)
Accumulated Other Comprehensive (Loss) Income [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(16,353)	(22,144)
Other comprehensive (loss) income	(15,556)	1,704
Ending balance	$ (31,909)	$ (20,440)