Acquisition - Assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Apr. 06, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Revenue, Net		$ 1,266,930	$ 1,139,643	$ 3,094,150	$ 2,807,023
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		72,382	69,770	123,539	129,655
Goodwill		1,160,453	$ 614,698	1,160,453	614,698	$ 604,714
Cash paid at closing, net of cash acquired				1,028,729	$ 0
Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Trade accounts receivable	$ 109,565
Inventories	79,758
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	255,616
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	245,000
Other assets	40,577
Trade accounts payable and accrued liabilities	(77,807)
Deferred income taxes	(105,167)
Other liabilities	(24,697)
Total identifiable net assets	522,845
Goodwill	505,884
Cash paid at closing, net of cash acquired	1,028,729
Technology And Know How [Member] | Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	25,000
Customer Relationships [Member] | Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 220,000
Dispensing Systems [Member]
Business Acquisition [Line Items]
Revenue, Net		149,800		292,500
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ 21,000		28,700
Business Combination, Provisional Information, Inventory Write-up Adjustment, Before Income Taxes, Included in Net Income				$ 11,900