Commitments and Contingencies - Legal Proceedings - Narrative (Details)	Sep. 30, 2016 USD ($)	May 02, 2012 lawsuit_filed	Apr. 02, 2012 lawsuit_filed	Feb. 29, 2012 lawsuit_filed	Feb. 24, 2012 lawsuit_filed	Feb. 13, 2012 lawsuit_filed	Feb. 09, 2012 lawsuit_filed	Jan. 27, 2012 lawsuit_filed	Jan. 13, 2012 lawsuit_filed	Nov. 23, 2011 lawsuit_filed
Loss Contingencies [Line Items]
Commitments and contingencies | $	$ 0
United States District Court for the Northern District of California | Pending Litigation
Loss Contingencies [Line Items]
Shareholder suits			1	1	1	1		1	1
Superior Court of California, Santa Clara County | Pending Litigation
Loss Contingencies [Line Items]
Shareholder suits		1					1			1