Annual report pursuant to Section 13 and 15(d)

Timeline Labs Acquisition and Loss on Impairment - Summary of Allocation of Purchase Price (Detail)

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Timeline Labs Acquisition and Loss on Impairment - Summary of Allocation of Purchase Price (Detail) - USD ($)
$ in Thousands
12 Months Ended
Feb. 02, 2015
Jan. 31, 2016
Jan. 31, 2014
Aug. 03, 2015
Jan. 31, 2015
Fair value of consideration:          
Cash, net of cash acquired   $ 11,686 $ 4,009    
Fair value of assets acquired and liabilities assumed:          
Goodwill   $ 40,175 $ 45,150   $ 41,008
Timeline Labs [Member]          
Fair value of consideration:          
Cash, net of cash acquired $ 14,186        
Closing stock consideration 3,019        
Deferred stock consideration 4,959     $ 1,800  
Contingent consideration 475        
Total purchase price 22,639        
Fair value of assets acquired and liabilities assumed:          
Current assets 95        
Other long-term assets 108        
Finite-life intangible assets 6,720        
Goodwill 15,787        
Current liabilities (71)        
Allocated purchase price $ 22,639