BUSINESS AND ASSET ACQUISITIONS & DIVESTITURES (Details) $ in Thousands	1 Months Ended		9 Months Ended
	Sep. 29, 2017 USD ($)	Apr. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) business	Mar. 31, 2017 USD ($)
Business Acquisition [Line Items]
Goodwill			$ 1,104,770	$ 984,867
Series of individually immaterial business acquisitions
Business Acquisition [Line Items]
Number of businesses acquired | business			2
AGM Automotive
Business Acquisition [Line Items]
Purchase Consideration		$ 213,700	$ 213,718
Purchased Intangible Assets			82,000
Goodwill			75,280
Net Tangible Assets Acquired			56,438
Power Modules
Business Acquisition [Line Items]
Purchase Consideration	$ 56,000		56,006
Purchased Intangible Assets			34,500
Goodwill			9,174
Net Tangible Assets Acquired			$ 12,332