BUSINESS SEGMENTS - Disaggregation of Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 55,281	$ 100,094	$ 172,048	$ 311,183
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | One Customer
Disaggregation of Revenue [Line Items]
Concentration risk percentage	11.00%		12.00%
DynaEnergetics
Disaggregation of Revenue [Line Items]
Net sales	$ 34,201	77,356	$ 111,065	245,820
DynaEnergetics | United States
Disaggregation of Revenue [Line Items]
Net sales	23,324	67,361	80,931	210,642
DynaEnergetics | Canada
Disaggregation of Revenue [Line Items]
Net sales	1,856	2,586	2,504	8,962
DynaEnergetics | Iraq
Disaggregation of Revenue [Line Items]
Net sales	1,049	218	3,238	1,104
DynaEnergetics | India
Disaggregation of Revenue [Line Items]
Net sales	601	160	5,624	236
DynaEnergetics | Indonesia
Disaggregation of Revenue [Line Items]
Net sales	542	225	1,488	1,406
DynaEnergetics | Pakistan
Disaggregation of Revenue [Line Items]
Net sales	482	262	866	601
DynaEnergetics | Egypt
Disaggregation of Revenue [Line Items]
Net sales	388	876	2,642	2,610
DynaEnergetics | Kuwait
Disaggregation of Revenue [Line Items]
Net sales	198	123	1,226	869
DynaEnergetics | Germany
Disaggregation of Revenue [Line Items]
Net sales	126	455	513	535
DynaEnergetics | Malaysia
Disaggregation of Revenue [Line Items]
Net sales	114	648	1,026	772
DynaEnergetics | United Arab Emirates
Disaggregation of Revenue [Line Items]
Net sales	32	349	783	4,447
DynaEnergetics | Rest of the world
Disaggregation of Revenue [Line Items]
Net sales	5,489	4,093	10,224	13,636
NobelClad
Disaggregation of Revenue [Line Items]
Net sales	21,080	22,738	60,983	65,363
NobelClad | United States
Disaggregation of Revenue [Line Items]
Net sales	10,589	12,883	30,094	34,830
NobelClad | Canada
Disaggregation of Revenue [Line Items]
Net sales	1,985	1,143	5,446	4,502
NobelClad | India
Disaggregation of Revenue [Line Items]
Net sales	733	267	880	546
NobelClad | Germany
Disaggregation of Revenue [Line Items]
Net sales	982	1,210	2,770	3,041
NobelClad | United Arab Emirates
Disaggregation of Revenue [Line Items]
Net sales	310	287	2,930	1,561
NobelClad | Spain
Disaggregation of Revenue [Line Items]
Net sales	763	1,029	2,636	1,375
NobelClad | Belgium
Disaggregation of Revenue [Line Items]
Net sales	647	409	1,057	1,892
NobelClad | Australia
Disaggregation of Revenue [Line Items]
Net sales	587	241	1,193	1,086
NobelClad | Sweden
Disaggregation of Revenue [Line Items]
Net sales	541	400	1,097	1,538
NobelClad | Netherlands
Disaggregation of Revenue [Line Items]
Net sales	361	519	1,276	1,531
NobelClad | France
Disaggregation of Revenue [Line Items]
Net sales	300	529	2,392	2,182
NobelClad | Norway
Disaggregation of Revenue [Line Items]
Net sales	297	1,359	1,937	3,519
NobelClad | Greece
Disaggregation of Revenue [Line Items]
Net sales	40	11	228	37
NobelClad | Singapore
Disaggregation of Revenue [Line Items]
Net sales	32	6	857	6
NobelClad | South Korea
Disaggregation of Revenue [Line Items]
Net sales	0	438	1,212	1,319
NobelClad | Rest of the world
Disaggregation of Revenue [Line Items]
Net sales	$ 2,913	$ 2,007	$ 4,978	$ 6,398