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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance			$ (62,104)
Other comprehensive (loss) income	$ (5,484)	$ (10,872)	1,070	$ (26,428)
Ending balance	(61,034)		(61,034)
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			2,060	(27,628)
Ending balance	(38,006)	(28,844)	(38,006)	(28,844)
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			(1,378)	856
Ending balance	(8,209)	697	(8,209)	697
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			388	344
Ending balance	(14,819)	(14,634)	(14,819)	(14,634)
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	(5,484)	(10,872)	1,070	(26,428)
Ending balance	$ (61,034)	$ (42,781)	$ (61,034)	$ (42,781)