CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME [Abstract]
Net loss	$ (8,892)	$ (19,568)	$ (57,799)	$ (29,446)
Foreign currency translation adjustments, net of tax of $0	1,592	1,485	(3,657)	3,022
Comprehensive loss	(7,300)	(18,083)	(61,456)	(26,424)
Less: Comprehensive (loss) income attributable to non-controlling interest	(135)	2,733	2,507	4,821
Comprehensive loss attributable to NCS Multistage Holdings, Inc.	$ (7,165)	$ (20,816)	$ (63,963)	$ (31,245)