Derivative Instruments and Hedging Activities (Details) In Millions, unless otherwise specified	Mar. 31, 2015 Embedded derivatives in purchase and delivery contracts USD ($)	Dec. 31, 2014 Embedded derivatives in purchase and delivery contracts USD ($)	Mar. 31, 2015 Fixed price commodity contracts USD ($)	Dec. 31, 2014 Fixed price commodity contracts USD ($)	Mar. 31, 2015 Revolving Loans USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR Long EUR (€)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR Long EUR (€)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar Long USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar Long USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts GBP:EUR USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts GBP:EUR USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts GBP:EUR Long EUR (€)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts GBP:EUR Long EUR (€)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:YEN USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:YEN Long JPY (¥)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF USD ($)	Mar. 31, 2015 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF Long CHF	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF Long CHF	Mar. 31, 2015 US Dollar revolving loans under the Amended Credit Agreement Revolving Loans USD ($)
Derivative instruments and hedging activities
Amount outstanding					$ 112.5																					$ 112.5
Notional Amount			1.9	2.7		101.8	99.8	56.3	55.4	48.5	43.3	0.2	0.3	0.2	0.3	0.1	0.1	0.1	0.1	0.1	5.7	45.2	43.9	40.5	41.4
Fair Value of Liabilities						7.8	5.1	4.3	2.9													3.5	2.2
Notional amount of derivative sale contracts	54.6	41.1
Notional amount of derivative purchase contracts	$ 8.5	$ 8.7