Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets (Details)

v3.5.0.2
Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 01, 2015
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Amortizable intangible assets            
Gross Carrying Amount   $ 34,957   $ 34,957   $ 34,846
Accumulated Amortization   (25,521)   (25,521)   (22,959)
Net Carrying Amount   9,436   9,436   11,887
Amortization expense   850 $ 707 2,600 $ 2,200  
Estimated future amortization expense            
Remainder of 2016   862   862    
2017   3,372   3,372    
2018   2,566   2,566    
2019   1,768   1,768    
2020   869   869    
Patents            
Amortizable intangible assets            
Gross Carrying Amount   10,823   10,823   10,823
Accumulated Amortization   (8,055)   (8,055)   (6,872)
Net Carrying Amount   2,768   2,768   3,951
Patents | Skyhook            
Amortizable intangible assets            
Useful life 3 years 6 months          
Tradename            
Amortizable intangible assets            
Gross Carrying Amount   2,838   2,838   2,838
Accumulated Amortization   (1,435)   (1,435)   (1,154)
Net Carrying Amount   1,403   1,403   1,684
Capitalized software            
Amortizable intangible assets            
Gross Carrying Amount   11,084   11,084   10,973
Accumulated Amortization   (10,932)   (10,932)   (10,857)
Net Carrying Amount   152   152   116
Capitalized software | Skyhook | Minimum            
Amortizable intangible assets            
Useful life 3 years          
Capitalized software | Skyhook | Maximum            
Amortizable intangible assets            
Useful life 5 years          
Customer relationships            
Amortizable intangible assets            
Gross Carrying Amount   10,212   10,212   10,212
Accumulated Amortization   (5,099)   (5,099)   (4,076)
Net Carrying Amount   $ 5,113   $ 5,113   $ 6,136
Tradename and customer relationships [member] | Skyhook            
Amortizable intangible assets            
Useful life 5 years 6 months