CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME
Net loss	$ (16,437)	$ (69,181)	$ (201,953)	$ (63,749)
Other comprehensive income (loss):
Pension adjustment and reclassification adjustment, net of taxes	186	173	1,104	520
Foreign currency translation	(25)	82	(423)	513
Comprehensive loss	$ (16,276)	$ (68,926)	$ (201,272)	$ (62,716)