GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Company's Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2016	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,410,853		$ 1,416,615
Accumulated Amortization	(289,008)		(256,988)
Net	1,121,845		1,159,627
Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	162,900		162,900
Net	$ 162,900		162,900
In Process Research and Development
Acquired Finite-Lived Intangible Assets [Line Items]
Other indefinite-lived intangible assets			1,000
Completed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	19 years	19 years
Cost	$ 865,467		869,174
Accumulated Amortization	(146,727)		(124,096)
Net	$ 718,740		745,078
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	13 years	13 years
Cost	$ 232,312		233,430
Accumulated Amortization	(98,919)		(91,961)
Net	$ 133,393		141,469
Trademarks/brand names
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	28 years	28 years
Cost	$ 104,398		104,879
Accumulated Amortization	(23,956)		(22,293)
Net	$ 80,442		82,586
Supplier relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	27 years	27 years
Cost	$ 34,721		34,721
Accumulated Amortization	(15,805)		(15,092)
Net	$ 18,916		19,629
All other
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	4 years	4 years
Cost	$ 11,055		11,511
Accumulated Amortization	(3,601)		(3,546)
Net	$ 7,454		$ 7,965