Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.4.0.3
Commitments and Contingencies (Details)
$ in Millions
3 Months Ended
May. 14, 2015
USD ($)
Apr. 24, 2015
USD ($)
Mar. 05, 2015
item
Mar. 31, 2015
USD ($)
Mar. 31, 2016
item
Skyhook | Patent infringement lawsuit          
General Litigation          
Number of claims | item     8    
Number of days before action is reopened     45 days    
Litigation settlement amount       $ 90.0  
Proceeds from Legal Settlements   $ 90.0      
Legal Fees       $ 29.5  
TruePosition | Polaris patent infringement lawsuit          
General Litigation          
Loss Contingency, Damages Sought, Value $ 3.0        
TruePosition | Indemnification claim          
General Litigation          
Number of claims | item         4