Accumulated Other Comprehensive (Loss) Income - Components of Accumulated Other Comprehensive (Loss) Income, Net of Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance			$ (16,353)
Other comprehensive (loss) income	$ (10,872)	$ 895	(26,428)	$ 2,599
Ending balance	(42,781)		(42,781)
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			(27,628)	1,957
Ending balance	(28,844)	578	(28,844)	578
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			856	122
Ending balance	697	(299)	697	(299)
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			344	520
Ending balance	(14,634)	(19,824)	(14,634)	(19,824)
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	(10,872)	895	(26,428)	2,599
Ending balance	$ (42,781)	$ (19,545)	$ (42,781)	$ (19,545)