Property, Plant and Equipment (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 47.3	$ 41.4	$ 39.1
Equipment and Furnishings | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Equipment and Furnishings | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	14 years
Buildings and Improvements | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Buildings and Improvements | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years