Litigation (Details) In Millions, unless otherwise specified	3 Months Ended				3 Months Ended
	Mar. 31, 2013 USD ($)	Jun. 30, 2011 USD ($)	Dec. 31, 2012 EUR (€)	Jun. 08, 2010 USD ($)	Mar. 31, 2013 Canada Lease Dispute [Member] USD ($)
Loss Contingencies [Line Items]
Compensatory damages and interest					$ 7.0
Plaintiffs estimated expert report of damages					2.5
Cost seeks for damages					0.4
Litigation Details (Textual) [Abstract]
Notice of Assessment under consideration for corporate excise tax				103.5
Stipulated royalty rate	0.50%
Damages claimed	108
Prejudgment interest	54
Decrease in share of co-promotion revenue due to estimated damages and interest	41.5	50.0
Payment in case of any unfavorable determination received			€ 30.7
Limited period for government reimbursement	24 months
Automatic renewal period for the resolution	24 months
Reimbursement limit stated in the resolution	24 months