Derivative Instruments and Hedging Activities (Details) In Millions, unless otherwise specified													12 Months Ended																				12 Months Ended
	Dec. 31, 2013 Foreign exchange contracts Other current assets USD ($)	Dec. 31, 2014 Foreign exchange contracts Other current liabilities USD ($)	Dec. 31, 2014 Embedded derivatives in purchase and delivery contracts USD ($)	Dec. 31, 2013 Embedded derivatives in purchase and delivery contracts USD ($)	Dec. 31, 2014 Embedded derivatives in purchase and delivery contracts Other current assets USD ($)	Dec. 31, 2013 Embedded derivatives in purchase and delivery contracts Other current assets USD ($)	Dec. 31, 2014 Embedded derivatives in purchase and delivery contracts Other current liabilities USD ($)	Dec. 31, 2013 Embedded derivatives in purchase and delivery contracts Other current liabilities USD ($)	Dec. 31, 2014 Fixed price commodity contracts USD ($)	Dec. 31, 2013 Fixed price commodity contracts USD ($)	Dec. 31, 2013 Fixed price commodity contracts Other current assets USD ($)	Dec. 31, 2014 Fixed price commodity contracts Other current liabilities USD ($)	Dec. 31, 2014 Not designated as hedging instruments USD ($)	Dec. 31, 2013 Not designated as hedging instruments USD ($)	Dec. 31, 2012 Not designated as hedging instruments USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts USD ($)	Dec. 31, 2013 Not designated as hedging instruments Foreign exchange contracts USD ($)	Dec. 31, 2012 Not designated as hedging instruments Foreign exchange contracts USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR USD ($)	Dec. 31, 2013 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR Long EUR (€)	Dec. 31, 2013 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR Long EUR (€)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar Long USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts GBP:EUR USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts GBP:EUR Long EUR (€)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:YEN USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts EUR:YEN Long JPY (¥)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF USD ($)	Dec. 31, 2013 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF USD ($)	Dec. 31, 2014 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF Long CHF	Dec. 31, 2013 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF Long CHF	Dec. 31, 2014 Not designated as hedging instruments Embedded derivatives in purchase and delivery contracts USD ($)	Dec. 31, 2013 Not designated as hedging instruments Embedded derivatives in purchase and delivery contracts USD ($)	Dec. 31, 2012 Not designated as hedging instruments Embedded derivatives in purchase and delivery contracts USD ($)	Dec. 31, 2014 Not designated as hedging instruments Fixed price commodity contracts USD ($)	Dec. 31, 2013 Not designated as hedging instruments Fixed price commodity contracts USD ($)	Dec. 31, 2012 Designated as a hedging instrument Interest rate swap contracts USD ($)	Dec. 31, 2014 US Dollar revolving loans under the Amended Credit Agreement USD ($)
Derivative instruments and hedging activities
Amount outstanding																																							$ 112.5
Notional Amount									2.7	3.4						99.8	95.9		55.4	54.5	43.3	40.4	0.3	0.3	0.1	0.1	0.1	5.7	43.9	41.4	41.4	37.9
Fair Value of Assets	2.3				0.6	0.2					0.1						2.3			1.1										1.2
Fair Value of Liabilities		5.1					0.4	0.4				0.2				5.1			2.9										2.2
Notional amount of derivative sale contracts			41.1	21.7
Notional amount of derivative purchase contracts			8.7	9.5
Loss recognized in other comprehensive income related to the effective portion																																						0.2
Loss reclassified from other comprehensive income and recognized in net income																																						1.3
Impact on net income of unrealized gains and losses resulting from changes in fair value of derivative instruments													$ (7.3)	$ 0.6	$ 5.8	$ (7.4)	$ 0.5	$ 6.0															$ 0.4	$ (0.2)	$ (0.2)	$ (0.3)	$ 0.3