Business and Significant Accounting Policies (Details 4) (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended			12 Months Ended		12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Minimum	Dec. 31, 2013 Qsymia	Dec. 31, 2013 License and commercialization agreement STENDRA or SPEDRA Auxilium Pharmaceuticals, Inc.
License and Commercialization Agreement and Commercial Supply Agreement for STENDRA with Auxilium
Product shelf life period	36 months					48 months
Current deferred revenue		$ 17,255	$ 1,150		$ 10,300	$ 6,700
Market price of capped call transactions in relation to the convertible notes (in dollars per share)				$ 20