Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets (Details)

v3.4.0.3
Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 01, 2015
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Amortizable intangible assets        
Gross Carrying Amount   $ 34,846   $ 34,846
Accumulated Amortization   (23,817)   (22,959)
Net Carrying Amount   11,029   11,887
Amortization expense   858 $ 834  
Estimated future amortization expense        
Remainder of 2016   2,547    
2017   3,342    
2018   2,529    
2019   1,742    
2020   869    
Patents        
Amortizable intangible assets        
Gross Carrying Amount   10,823   10,823
Accumulated Amortization   (7,266)   (6,872)
Net Carrying Amount   3,557   3,951
Patents | Skyhook        
Amortizable intangible assets        
Useful life 3 years 6 months      
Tradename        
Amortizable intangible assets        
Gross Carrying Amount   2,838   2,838
Accumulated Amortization   (1,248)   (1,154)
Net Carrying Amount   1,590   1,684
Capitalized software        
Amortizable intangible assets        
Gross Carrying Amount   10,973   10,973
Accumulated Amortization   (10,886)   (10,857)
Net Carrying Amount   87   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
Accumulated Amortization   (4,417)   (4,076)
Net Carrying Amount   $ 5,795   $ 6,136
Tradename and customer relationships [member] | Skyhook        
Amortizable intangible assets        
Useful life 5 years 6 months