Segment Information And Geographic Data (Summary Information By Operating Segment) (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenue				$ 157,257	$ 134,790	$ 127,058
Income (loss) from operations				29,911	25,984	10,429
Non-operating income (expense), net				359	393	2,777
Income before provision for income tax				30,270	26,377	13,206
Upfront and regulatory milestone payments				2,000
SEC settlement expense (Notes 18 and 22)	$ 10,800		$ 2,000	10,826		2,000
Upfront payments	$ 5,500	$ 11,000				5,000
Restructuring charges						1,181
China [Member]
Segment Reporting Information [Line Items]
Revenue				151,573	130,311	122,616
Income (loss) from operations				52,892	35,630	30,557
Non-operating income (expense), net				349	412	233
Income before provision for income tax				53,241	36,042	30,790
Upfront and regulatory milestone payments				5,500
Upfront payments					11,000
Rest Of The World (Including The U.S. And Hong Kong) [Member]
Segment Reporting Information [Line Items]
Revenue				5,684	4,479	4,442
Income (loss) from operations				(22,981)	(9,646)	(20,128)
Non-operating income (expense), net				10	(19)	2,544
Income before provision for income tax				(22,971)	$ (9,665)	(17,584)
Upfront and regulatory milestone payments				2,000
SEC settlement expense (Notes 18 and 22)				$ 10,800		2,000
Escrow settlement cash and shares combined value						$ 2,600