Acquisitions - Schedule of assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 5,381,447	$ 5,378,388
Frutarom
Business Acquisition [Line Items]
Cash and cash equivalents	140,747	140,747
Other current assets	673,921	699,627
Identifiable intangible assets	2,668,300	2,690,000
Other non-current assets	412,111	353,710
Equity method investments	36,230	25,791
Current liabilities	(318,515)	(311,325)
Debt assumed	(77,037)	(77,037)
Other liabilities	(672,218)	(632,488)
Redeemable noncontrolling interest	(102,902)	(97,510)
Noncontrolling interest	(3,700)	(3,700)
Goodwill	4,273,957	4,243,079
Total Purchase Consideration	7,030,894	$ 7,030,894
Measurement period adjustments | Frutarom
Business Acquisition [Line Items]
Cash and cash equivalents
Other current assets	(25,706)
Identifiable intangible assets	(21,700)
Other non-current assets	58,401
Equity method investments	10,439
Current liabilities	7,190
Debt assumed
Other liabilities	(39,730)
Redeemable noncontrolling interest	(5,392)
Noncontrolling interest
Goodwill	$ 30,878