Litigation (Details) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended	12 Months Ended			12 Months Ended
	Jun. 30, 2011 USD ($)	Jun. 30, 2011 EUR (€)	Sep. 30, 2011	Dec. 31, 2011 EUR (€) LegalMatter	Jun. 08, 2010 USD ($)	Dec. 31, 2006 USD ($)	Dec. 31, 2011 Canada Lease Dispute [Member] USD ($)
Loss Contingencies [Line Items]
Compensatory damages	$ 125.0						$ 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	38.9
Stipulated royalty rate			0.50%
Decrease in share of co-promotion profits due to estimated compensation damages	50.0
Damages claimed		153.0
Maximum percentage estimation range of potential loss for royalty as percentage of net sales				0.50%
Number of consolidated lawsuits				2
Period of statutory limitations for damages in patent cases				6 years
Limited period for government reimbursement				24 months
Automatic renewal period for the resolution				24 months
Reimbursement limit stated in the resolution				24 months
Payment in case of any unfavorable determination received	$ 50.0			€ 30.7