Acquisition - Dispensing systems acquisition (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Apr. 06, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Deferred income taxes		$ (416,118)	$ (253,427)	$ (416,118)	$ (253,427)	$ (298,420)
Cash paid at closing, net of cash acquired				1,022,092	0
Total debt - principal		3,112,076	1,946,012	3,112,076	1,946,012	1,571,192
Goodwill		1,160,624	614,021	1,160,624	614,021	$ 604,714
Net sales		1,021,814	874,642	1,827,220	1,667,379
Net income		27,926	33,315	51,157	59,886
Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accounts Payable and Accrued Liabilities	$ 81,783
Business acquisition, revenue reported by acquired entity for last annual period	570,000
Cash paid at closing, net of cash acquired	1,022,092
Goodwill	523,456
Other intangible assets	245,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	253,708
Corporate Segment [Member]
Business Acquisition [Line Items]
Business Combination, Total Acquisition Related Costs		24,400		24,400
Costs attributed to announced acquisitions included in net income		9,800		23,000
Net sales		0	$ 0	0	0
Dispensing Systems [Member]
Business Acquisition [Line Items]
Net sales		142,700		142,700
Net income		7,700		7,700
Business Combination, Provisional Information, Inventory Write-up Adjustment, Before Income Taxes, Included in Net Income					$ 11,900
Business Combination, Provisional Information, Inventory Write-up Adjustment, Before Income Taxes Excluded From Net Income		11,900		11,900
Customer Relationships [Member] | Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Other intangible assets	$ 220,000
Acquired finite-lived intangible assets, weighted average useful life	22 years
Technology And Know How [Member] | Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Other intangible assets	$ 25,000
Acquired finite-lived intangible assets, weighted average useful life	7 years
US Term Loan [Member] | Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Total debt - principal		$ 800,000		$ 800,000