Acquisition - Assets acquired and liabilities assumed (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]
Revenue, Net		$ 1,021,814	$ 874,642	$ 1,827,220	$ 1,667,379
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		27,926	33,315	51,157	59,886
Goodwill		1,160,624	$ 614,021	1,160,624	614,021	$ 604,714
Cash paid at closing, net of cash acquired				1,022,092	$ 0
Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Trade accounts receivable	$ 109,494
Inventories	79,705
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	253,708
Other intangible assets	245,000
Other assets	40,396
Trade accounts payable and accrued liabilities	(81,783)
Deferred income taxes	(122,544)
Other liabilities	(25,340)
Total identifiable net assets	498,636
Goodwill	523,456
Cash paid at closing, net of cash acquired	$ 1,022,092
Property, Plant and Equipment [Member] | Maximum [Member] | Dispensing Systems Business Acquisition [Member]
Business Acquisition [Line Items]
Acquired Finite-Lived Property, Plant and Equipment, Weighted Average Useful Life	35 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
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
Dispensing Systems [Member]
Business Acquisition [Line Items]
Revenue, Net		142,700		142,700
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		7,700		7,700
Business Combination, Provisional Information, Inventory Write-up Adjustment, Before Income Taxes, Included in Net Income		$ 11,900		$ 11,900