Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Foreign currency forward contracts that were entered into to hedge forecasted revenue

	Notional Amount As of December 31,
Foreign Currency: (In millions)	2012		2011
Euro	$	492.2	$	496.4
Canadian dollar	31.8		22.9
Swedish krona	—		13.0
Total foreign currency forward contracts	$	524.0	$	532.3

Summary of derivatives designated as hedging instruments

(In millions)	Balance Sheet Location	Fair Value As of December 31, 2012
Foreign Currency Contracts:
Asset derivatives	Other current assets	$	0.6
Liability derivatives	Accrued expenses and other	$	11.5

(In millions)	Balance Sheet Location	Fair Value As of December 31, 2011
Foreign Currency Contracts:
Asset derivatives	Other current assets	$	32.6
Liability derivatives	Accrued expenses and other	$	—

Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income

For the Years Ended (In millions)	Amount Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative Gain/(Loss) (Effective Portion)			Income Statement Location (Effective Portion)	Amount Reclassified  from Accumulated  Other Comprehensive Income (Loss) into Income Gain/(Loss) (Effective Portion)			Income Statement Location (Ineffective Portion)	Amount of Gain/(Loss) Recorded (Ineffective Portion)
December 31, 2012:
Foreign currency contracts		($11.8	)	Revenue		$35.1		Other income (expense)		$4.8
December 31, 2011:
Foreign currency contracts		$36.5		Revenue		($36.9	)	Other income (expense)		($3.9	)
December 31, 2010:
Foreign currency contracts		($11.0	)	Revenue		$45.7		Other income (expense)		$0.4