Comprehensive Loss - Changes in Accumulated Other Comprehensive Income By Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	$ 371,186	$ 334,392
Other comprehensive income or loss before reclassifications	(21,171)	(2,337)
Amounts reclassified from accumulated other comprehensive income	27	57
Other Comprehensive Loss	(21,144)	(2,280)
Stockholders' equity, ending balance	357,243	342,413
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	347	(816)
Stockholders' equity, ending balance	(20,797)	(3,096)
Unrealized Gains and Losses on Available for Sale Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	(614)	5,799
Other comprehensive income or loss before reclassifications	(22,296)	(3,812)
Amounts reclassified from accumulated other comprehensive income	0	0
Other Comprehensive Loss	(22,296)	(3,812)
Stockholders' equity, ending balance	(22,910)	1,987
Unrealized Loss on Cash Flow Swap
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	1,320	485
Other comprehensive income or loss before reclassifications	1,125	1,475
Amounts reclassified from accumulated other comprehensive income	(21)	(20)
Other Comprehensive Loss	1,104	1,455
Stockholders' equity, ending balance	2,424	1,940
Net Actuarial Gain (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	639	(5,929)
Other comprehensive income or loss before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	42	34
Other Comprehensive Loss	42	34
Stockholders' equity, ending balance	681	(5,895)
Net Prior Service (Cost) Credit
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	(998)	(1,171)
Other comprehensive income or loss before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	6	43
Other Comprehensive Loss	6	43
Stockholders' equity, ending balance	$ (992)	$ (1,128)