Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v3.7.0.1
Summary of Significant Accounting Policies - Additional Information (Detail)
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2016
USD ($)
Jan. 31, 2017
USD ($)
Jan. 31, 2017
USD ($)
Jan. 31, 2016
USD ($)
Jan. 31, 2017
USD ($)
Customer
Jan. 31, 2016
USD ($)
Customer
Jan. 31, 2015
USD ($)
Customer
Jul. 31, 2016
USD ($)
Feb. 28, 2015
USD ($)
Significant Accounting Policies [Line Items]                  
Undistributed earnings of foreign subsidiaries   $ 6,000,000 $ 6,000,000   $ 6,000,000        
Deferred tax liability related to the foreign income   14,675,000 14,675,000   14,675,000        
Allowance for doubtful accounts receivable $ 415,000 $ 876,000 $ 876,000 $ 415,000 $ 876,000 $ 415,000      
Cost method investment, ownership percentage   20.00% 20.00%   20.00%        
Loss on impairment   $ 500,000 $ 23,500,000 21,500,000 $ 23,772,000 21,464,000      
Identified intangible assets, Useful life         2 years 4 months 24 days        
Capitalized software costs   2,700,000 2,700,000   $ 2,700,000        
Goodwill impairment charge         23,492,000        
Loss on impairment of long-lived assets held for sale   300,000              
Contingent consideration liability, fair value 0     0   0     $ 3,200,000
Foreign currency transaction gain (loss), realized         2,100,000 700,000 $ 2,300,000    
Comprehensive loss         $ (70,007,000) (48,556,000) (31,106,000)    
Minimum period warranty of product         1 year        
Advertising expense         $ 100,000 100,000 100,000    
Excess tax benefit due to early adoption         14,631,000 (1,029,000) $ (1,106,000)    
ASU 2016-09 [Member]                  
Significant Accounting Policies [Line Items]                  
Excess tax benefit due to early adoption         $ 1,800,000        
Software Development [Member]                  
Significant Accounting Policies [Line Items]                  
Identified intangible assets, Useful life         3 years        
Irish Operations [Member]                  
Significant Accounting Policies [Line Items]                  
Undistributed earnings of foreign subsidiaries               $ 58,600,000  
Deferred tax liability related to the foreign income               $ 14,700,000  
Timeline Labs [Member]                  
Significant Accounting Policies [Line Items]                  
Loss on impairment 21,900,000         21,900,000      
Goodwill impairment charge 15,800,000         15,800,000      
Intangible assets impairment charge 5,200,000         5,200,000      
Capitalized internal use software impairment charge 900,000         900,000      
Loss on impairment due to reversal of contingent consideration liability         $ 400,000 400,000      
Contingent consideration liability, fair value $ 0 $ 0 $ 0 $ 0 $ 0 $ 0      
Total Revenue [Member]                  
Significant Accounting Policies [Line Items]                  
Number of customers accounted | Customer         1 2 2    
Credit Concentration Risk [Member] | Accounts Receivable [Member]                  
Significant Accounting Policies [Line Items]                  
Number of customers accounted | Customer         2 1      
Concentration risk percentage         10.00% 10.00%      
Customer Concentration Risk [Member] | Total Revenue [Member]                  
Significant Accounting Policies [Line Items]                  
Concentration risk percentage         10.00% 10.00% 10.00%    
Minimum [Member]                  
Significant Accounting Policies [Line Items]                  
Support agreements         12 months        
Maximum [Member]                  
Significant Accounting Policies [Line Items]                  
Support agreements         36 months