ACQUISITIONS (ASSETS ACQUIRED TABLE) (DETAILS) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Aug. 08, 2014	Feb. 28, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Total deferred tax assets, net	$ 82,988	$ 78,654
Goodwill	114,183	128,705			$ 102,743
Accrued employee compensation and benefits	$ 71,634	$ 70,069
Sofica [Member]
Business Acquisition [Line Items]
Total purcahse price				$ 14,200
rogenSi [Member]
Business Acquisition [Line Items]
Cash			$ 2,670
Accounts receivable.			6,417
Property, plant and equipment.			578
Other assets			2,880
Total deferred tax assets, net			449
Customer relationships			6,331
Tradename / trademarks			5,545
Non-compete agreements			927
Goodwill			17,260
Total assets acquired			43,057
Accounts payable			708
Accrued employee compensation and benefits			2,203
Accrued expenses			1,146
Other			4,597
Total liabilities assumed			8,654
Total purcahse price			$ 34,403