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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 1, 2016, we commenced the term of the facility lease agreement with Walton Torrey Owner B, L.L.C., which we entered into in July 2015, for approximately 59,000 square feet of office and laboratory space in San Diego, California, for a term of 96 months. We anticipate completing the relocation of the Company's headquarters in the second quarter of 2016.