Acquisitions - Frutarom Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Oct. 04, 2018	Sep. 17, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Loss on extinguishment of debt			$ (38,810)	$ 0	$ 0
Revenue			3,977,539	3,398,719	3,116,350
Net income			339,781	295,665	405,031
Gross Proceeds		$ 825,000
Goodwill			5,378,388	1,156,288	$ 1,000,123	$ 941,389
Tangible equity units issued		16,500,000
Tangible equity units proceeds		$ 800,200
Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Acquisition Related Costs			156,700
Debt related commitment fees and debt issuance costs			39,400
Expected make-whole payments for early debt payoff			34,900
Loss on extinguishment of debt			3,900
Realized gain on foreign currency derivative			12,500
Transaction costs			66,000
Percentage of voting interest acquired	100.00%
Cash transferred per share of common stock (in dollars per share)	$ 71.19
Exchange ratio per share	0.2490
Repayments of debt	$ 695,000
Debt, face amount	3,300,000
Paid in cash vested stock	$ 19,200
Shares issued, vested awards (in shares)	67,046
Held in escrow	$ 13,600
Unvested awards, fair value	7,000
Cash paid to acquire business	$ 4,288,595
Business acquisition, equity interest (in shares)	14,900,000
Cumulative percentage ownership after transaction	14.00%
Finished goods and work in process	$ 31,500
Goodwill	4,243,079		$ 4,224,010	$ 0
Amortizing Note [Member]
Business Acquisition [Line Items]
Tangible equity units proceeds		$ 135,100
Amortizing Note [Member] | Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Gross Proceeds	139,500
Senior Notes [Member] | Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Debt, face amount	2,800,000
Line of Credit [Member] | Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Debt, face amount	$ 350,000