Divestment of Product Rights (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2014 DAYTRANA	Jun. 30, 2013 DAYTRANA	Mar. 31, 2014 CALCICHEW	Jun. 30, 2014 Total	Jun. 30, 2013 Total
Product Information [Line Items]
Cash consideration received on sale of product rights			$ 43.5
Gain (net of taxes) on sale of product righs			43.5	40.2	11.0
Gain (loss) on change in the fair value of divestiture contingent consideration receivable	$ 3.8	$ 4.5