Litigation (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2011	Jun. 08, 2010	Dec. 31, 2006
Litigation Details (Textuals) [Abstract]
Notice of Assessment under consideration for corporate excise tax	$ 142.4	$ 103.5	$ 38.9
Stipulated royalty rate	0.50%
Decrease in share of co-promotion profits due to estimated compensation damages	$ 50
Number of consolidated lawsuits	2
Maximum percentage estimation range of potential loss for royalty as percentage of net sales	0.50%