Acquisitions - Schedule of assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Oct. 04, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Excess attributable to Goodwill	$ 5,378,388		$ 1,156,288	$ 1,000,123	$ 941,389
Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 140,747
Other current assets		699,627
Identifiable intangible assets		2,690,000
Other assets		353,710
Equity method investments		25,791
Current liabilities		(311,325)
Debt assumed		(77,037)
Other liabilities		(632,488)
Redeemable noncontrolling interest		(97,510)
Noncontrolling interest		(3,700)
Excess attributable to Goodwill	$ 4,224,010	4,243,079	$ 0
Total Purchase Consideration		$ 7,030,894