CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2014
Business Acquisitions:
Net cash paid for business acquisitions		$ 21,236
Refine Technology, LLC
Business Acquisitions:
Fair value of tangible assets acquired	$ 1,420	1,175
Fair value of accounts receivable	1,267	1,647
Fair value of other assets	183	184
Liabilities assumed	(3,662)	(365)
Fair value of stock issued	(14,135)	(4,000)
Cost in excess of fair value of assets acquired (Goodwill)	46,505	13,199
Acquired identifiable intangible assets	19,829	9,100
Deferred tax liabilities, net	(5,841)
In-process research and development		1,600
Business Combination Considerations Transferred Net	45,566	22,540
Less accrued contingent consideration	(952)	(1,370)
Working capital adjustment		66
Net cash paid for business acquisitions	$ 44,614	$ 21,236