Acquisition - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Acquisition [Line Items]
Net loss from continuing operations per share, diluted (in dollars per share)	$ (1,170)	$ (1,100)
CJWS
Business Acquisition [Line Items]
Revenues	$ 95,400	$ 242,500	$ 371,245	$ 606,334
Loss from continuing operations	$ (29,153)	$ (28,178)	$ (190,381)	$ (57,788)
Net loss from continuing operations per share, basic (in dollars per share)	$ (1,170)	$ (1,100)	$ (7,640)	$ (2,180)
Net loss from continuing operations per share, diluted (in dollars per share)			$ (7,640)	$ (2,180)
Weighted average shares outstanding, basic and diluted (in shares)	24,927,369	25,606,264	24,932,900	26,551,592