Selected Quarterly Financial Information (unaudited) (Details 2) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Mar. 31, 2014
Synos Acquisition
Asset impairment	$ 58,170,000	$ 1,220,000	$ 1,335,000
ALD
Synos Acquisition
Asset impairment				53,900,000
Change in contingent consideration	$ 29,400,000	$ (800,000)			$ 29,400,000