RESTRUCTURING - Schedule of Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	$ 0	$ 1,996
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		1,745
Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		202
Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		11
Equipment Moving Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		32
Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		6
Operating Segments | NobelClad
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		54
Operating Segments | NobelClad | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		39
Operating Segments | NobelClad | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		0
Operating Segments | NobelClad | Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		11
Operating Segments | NobelClad | Equipment Moving Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		0
Operating Segments | NobelClad | Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		4
Operating Segments | DynaEnergetics
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		382
Operating Segments | DynaEnergetics | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		146
Operating Segments | DynaEnergetics | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		202
Operating Segments | DynaEnergetics | Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		0
Operating Segments | DynaEnergetics | Equipment Moving Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		32
Operating Segments | DynaEnergetics | Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		2
Corporate, Non-Segment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		1,560
Corporate, Non-Segment | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		1,560
Corporate, Non-Segment | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		0
Corporate, Non-Segment | Contract Termination Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		0
Corporate, Non-Segment | Equipment Moving Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		0
Corporate, Non-Segment | Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		$ 0