Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Intangible Assets (Detail)

v2.4.1.9
Summary of Significant Accounting Policies - Schedule of Intangible Assets (Detail)
12 Months Ended
Jan. 31, 2015
Customer Contracts [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 6 years
Completed Technology [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 5 years 2 months 12 days
Trademarks, Patents and Other [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 5 years
Minimum [Member] | Customer Contracts [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 1 year
Minimum [Member] | Non-Compete Agreements [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 2 years
Minimum [Member] | Completed Technology [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 4 years
Maximum [Member] | Customer Contracts [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 8 years
Maximum [Member] | Non-Compete Agreements [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 3 years
Maximum [Member] | Completed Technology [Member]  
Finite Lived And Indefinite Lived Intangible Assets [Line Items]  
Intangible assets with finite useful lives 6 years