Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail)

v3.2.0.727
Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($)
$ in Thousands
 6 Months Ended
Feb. 02, 2015
Jul. 31, 2015
Jan. 31, 2015
Finite-Lived Intangible Assets [Line Items]      
Finite-life intangible assets, Gross   $ 56,375 $ 50,219
Accumulated Amortization   (44,739) (42,905)
Finite-life intangible assets, Net   $ 11,636 7,314
Customer Contracts [Member]      
Finite-Lived Intangible Assets [Line Items]      
Weighted average remaining life (years) 7 years 6 years 3 months 18 days  
Finite-life intangible assets, Gross   $ 34,828 30,397
Accumulated Amortization   (25,705) (24,160)
Finite-life intangible assets, Net   $ 9,123 6,237
Non-Compete Agreements [Member]      
Finite-Lived Intangible Assets [Line Items]      
Weighted average remaining life (years) 2 years 2 years  
Finite-life intangible assets, Gross   $ 2,552 2,433
Accumulated Amortization   (2,425) (2,433)
Finite-life intangible assets, Net   $ 127  
Completed Technology [Member]      
Finite-Lived Intangible Assets [Line Items]      
Weighted average remaining life (years)   5 years 1 month 6 days  
Finite-life intangible assets, Gross   $ 11,303 10,307
Accumulated Amortization   (9,493) (9,230)
Finite-life intangible assets, Net   $ 1,810 1,077
Trademarks, Patents and Other [Member]      
Finite-Lived Intangible Assets [Line Items]      
Weighted average remaining life (years)   7 years 1 month 6 days  
Finite-life intangible assets, Gross   $ 7,692 7,082
Accumulated Amortization   (7,116) $ (7,082)
Finite-life intangible assets, Net   $ 576