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BUSINESS COMBINATIONS (Details) - USD ($) $ in Thousands	Aug. 21, 2019	Nov. 01, 2018	Dec. 31, 2019	Sep. 30, 2019
Business Acquisition [Line Items]
Goodwill			$ 82,786	$ 82,786
DrillScan
Business Acquisition [Line Items]
Consideration given	$ 32,700
Contingent consideration	17,700
Fair value of total assets acquired	36,300
Fair value of total liabilities assumed	3,600
Goodwill	14,900
Identifiable intangible assets	$ 19,100
AJC
Business Acquisition [Line Items]
Consideration given		$ 3,400
Goodwill		$ 3,100

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