Commitments and Contingencies - Legal Proceedings (Details)
$ in Millions
Jun. 15, 2015
defendant
May. 27, 2015
defendant
Mar. 09, 2015
USD ($)
NY Lanham Act Litigation      
Loss Contingencies [Line Items]      
Amount in damages (more than) | $     $ 250
Federal Securities Litigation      
Loss Contingencies [Line Items]      
Number of defendants | defendant 2 2