Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidated Statements of Comprehensive (Loss) Income [Abstract]
Net (loss) income	$ 3,445	$ (28,388)	$ 11,571	$ (86,541)
Other comprehensive (loss) income:
Change in net actuarial gain	43	35	130	104
Tax effect on change in net actuarial gain	(9)	(8)	(27)	(22)
Unrealized holding gains arising during the period	276	2,706	3,063	4,149
Tax effect on unrealized holding gains arising during the period	(58)	(568)	(643)	(872)
Reclassification adjustment for losses included in net (loss) income	(1,059)	(390)	(5,288)	(5,612)
Tax effect on reclassification adjustment for losses included in net (loss) income	222	82	1,110	1,179
Other comprehensive (loss) gain, net of tax	(585)	1,857	(1,655)	(1,074)
Comprehensive income (loss)	$ 2,860	$ (26,531)	$ 9,916	$ (87,615)