Stockholders' Equity - Accumulated Other Comprehensive (Loss) Income (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 845,025
Realized loss on sale of securities, net of tax	(66)
Other comprehensive (loss) income, net of reclassifications and tax	(81,674)
Ending balance	786,824
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(11,619)
Ending balance	(93,359)
Unrealized Loss on Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(5,946)
Realized loss on sale of securities, net of tax	(66)
Other comprehensive (loss) income, net of reclassifications and tax	(87,598)
Ending balance	(93,610)
Unrecognized Net Pension and Postretirement Costs (Benefit)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,881)
Realized loss on sale of securities, net of tax	0
Other comprehensive (loss) income, net of reclassifications and tax	76
Ending balance	(1,805)
Unrealized (Loss) Gain on Cash Flow Hedge
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,792)
Realized loss on sale of securities, net of tax	0
Other comprehensive (loss) income, net of reclassifications and tax	5,848
Ending balance	$ 2,056