Balance Sheet Details - Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Other Non-current Liabilities [Abstract]
Unrecognized Tax Benefits	$ 2,963	$ 3,152
Contingent consideration - Acquisition non-current liability	3,103	2,296
Deferred Revenue, Noncurrent	1,128	1,206
Other Liabilities	3,075	2,900
Other Liabilities, Noncurrent	$ 10,269	$ 9,554