CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues
Revenues	$ 16,312	$ 60,773	$ 79,594	$ 153,391
Cost of sales
Cost of product sales and services, exclusive of depreciation and amortization expense shown below	10,208	32,209	47,215	82,053
Selling, general and administrative expenses	12,474	20,441	48,782	66,360
Depreciation	1,000	1,461	3,446	4,382
Amortization	103	1,153	1,340	3,451
Change in fair value of contingent consideration				37
Impairment			50,194	7,919
(Loss) income from operations	(7,473)	5,509	(71,383)	(10,811)
Other income (expense)
Interest expense, net	(876)	(424)	(1,622)	(1,497)
Other income, net	414	259	580	349
Foreign currency exchange loss, net	(260)	(131)	(467)	(678)
Total other expense	(722)	(296)	(1,509)	(1,826)
(Loss) income before income tax	(8,195)	5,213	(72,892)	(12,637)
Income tax (benefit) expense	(3,058)	(1,396)	(9,956)	10,200
Net (loss) income	(5,137)	6,609	(62,936)	(22,837)
Net income attributable to non-controlling interest	726	2,988	3,233	7,809
Net (loss) income attributable to NCS Multistage Holdings, Inc.	$ (5,863)	$ 3,621	$ (66,169)	$ (30,646)
(Loss) earnings per common share
Basic (loss) earnings per common share attributable to NCS Multistage Holdings, Inc. (in dollars per share)	$ (0.12)	$ 0.08	$ (1.40)	$ (0.66)
Diluted (loss) earnings per common share attributable to NCS Multistage Holdings, Inc. (in dollars per share)	$ (0.12)	$ 0.08	$ (1.40)	$ (0.66)
Weighted average common shares outstanding
Basic	47,351,000	46,892,000	47,240,000	46,552,000
Diluted	47,351,000	46,921,000	47,240,000	46,552,000
Product sales [Member]
Revenues
Revenues	$ 11,660	$ 43,756	$ 55,948	$ 110,933
Cost of sales
Cost of product sales and services, exclusive of depreciation and amortization expense shown below	7,874	23,796	35,191	57,032
Services [Member]
Revenues
Revenues	4,652	17,017	23,646	42,458
Cost of sales
Cost of product sales and services, exclusive of depreciation and amortization expense shown below	$ 2,334	$ 8,413	$ 12,024	$ 25,021