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, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	$ 903,472	$ 843,669	$ 887,301	$ 839,208
Other comprehensive income			8,127
Other comprehensive (loss) income			9,023	(3,478)
Reclassification adjustment recorded in earnings			896
Ending balance	916,733	854,137	916,733	854,137
Net Unrealized Losses on Available-for-Sale Investment Securities
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance			(35,117)	(34,321)
Other comprehensive income			8,068
Other comprehensive (loss) income				(2,205)
Ending balance	(27,049)	(36,526)	(27,049)	(36,526)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance			(2,422)	(4,566)
Other comprehensive income			0
Other comprehensive (loss) income				(1,505)
Reclassification adjustment recorded in earnings			896
Ending balance	(1,526)	(6,071)	(1,526)	(6,071)
Net Change Related to Defined Benefit Pension Plans
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance			(6,453)	(11,759)
Other comprehensive income			59
Other comprehensive (loss) income				232
Ending balance	(6,394)	(11,527)	(6,394)	(11,527)
Accumulated Other Comprehensive Loss
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Beginning balance	(37,922)	(54,740)	(43,992)	(50,646)
Other comprehensive (loss) income	2,953	616
Ending balance	$ (34,969)	$ (54,124)	$ (34,969)	$ (54,124)