Derivative Instruments and Hedging Activities (Details) In Millions, unless otherwise specified	12 Months Ended		12 Months Ended									12 Months Ended																									12 Months Ended
	Dec. 31, 2011 USD ($) M	Dec. 31, 2010 USD ($)	Dec. 31, 2011 Interest rate swap contracts USD ($)	Dec. 31, 2010 Interest rate swap contracts USD ($)	Apr. 30, 2008 Interest rate swap contracts USD ($)	Dec. 31, 2011 Foreign exchange contracts USD ($)	Dec. 31, 2010 Foreign exchange contracts USD ($)	Dec. 31, 2011 Embedded derivative in purchase and delivery contracts USD ($)	Dec. 31, 2010 Embedded derivative in purchase and delivery contracts USD ($)	Dec. 31, 2011 Fixed price commodity contracts USD ($)	Dec. 31, 2010 Fixed price commodity contracts USD ($)	Dec. 31, 2011 Designated as a hedging instrument Interest rate swap contracts USD ($)	Dec. 31, 2010 Designated as a hedging instrument Interest rate swap contracts USD ($)	Dec. 31, 2009 Designated as a hedging instrument Interest rate swap contracts USD ($)	Dec. 31, 2011 Not designated as hedging instruments USD ($)	Dec. 31, 2010 Not designated as hedging instruments USD ($)	Dec. 31, 2009 Not designated as hedging instruments USD ($)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts USD ($)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts AUD:EUR USD ($)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts AUD:EUR EUR (€)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts AUD:EUR USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts AUD:EUR EUR (€)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts CHF:EUR USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts CHF:EUR EUR (€)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR USD ($)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR EUR (€)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts US Dollar:EUR EUR (€)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts MXN:US Dollar USD ($)	Dec. 31, 2011 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts US Dollar:CHF CLP	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts EUR:CHF USD ($)	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts EUR:CHF CLP	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts EUR:US Dollar USD ($)	Dec. 31, 2011 Not designated as hedging instruments Embedded derivative in purchase and delivery contracts USD ($)	Dec. 31, 2010 Not designated as hedging instruments Embedded derivative in purchase and delivery contracts USD ($)	Dec. 31, 2009 Not designated as hedging instruments Embedded derivative in purchase and delivery contracts USD ($)
Derivative Instruments
Fixed interest rate (as a percent)			3.80%
Variable interest rate base			three month LIBOR
Maximum typical maturity period (in months)	12
Notional amount			$ 49.5	$ 66.4	$ 90.0					$ 3.9	$ 2.9							$ 80.2	$ 82.2	$ 2.1		$ 2.2		$ 19.3		$ 48.2		$ 19.6		$ 2.5	$ 27.4	$ 13.9		$ 18.5		$ 8.7
Fair Value of Assets							2.1	0.6	0.1	0.5	0.6								2.1									0.1				0.7		1.2		0.1
Fair Value of Liabilities	6.2	6.8	1.1	3.0		4.2	1.7	0.4	1.5	0.5	0.6								1.7	0.1		0.2		1.1		2.9		0.4			1.2
Notional amount of foreign currency derivative purchase contracts																					1.5		1.5		13.3		35.0		14.5		24.5		13.6		18.0	8.9
Notional amount of derivative purchase contracts								4.9	0.3
Notional amount of derivative sale contracts								34.8	16.1
Loss recognized in other comprehensive income related to the effective portion												(0.3)	(2.1)	(1.2)
Loss reclassified from other comprehensive income and recognized in net income												(2.2)	(2.6)	(2.5)
Expected accumulated losses to be reclassified into earnings over the next twelve months			1.1
Impact on net income of unrealized gains and losses resulting from changes in fair value of derivative instruments															$ (3.0)	$ 0.5	$ 0.7	$ (4.6)	$ 0.4																		$ 1.6	$ 0.1	$ 0.7