Annual report pursuant to Section 13 and 15(d)

Impairment Charges (Details)

v3.8.0.1
Impairment Charges (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Apr. 30, 2017
Oct. 30, 2016
Aug. 02, 2015
Nov. 01, 2015
Oct. 29, 2017
Finite-Lived Intangible Assets [Line Items]          
Aggregate goodwill acquired   $ 10,483     $ 10,483
Accumulated impairment losses   (3,733)     (3,733)
Foreign currency translation adjustment   (1,667)     (1,274)
Goodwill, net of impairment losses   5,083     $ 5,476
Information Technology Infrastructure Support Service          
Finite-Lived Intangible Assets [Line Items]          
Impairment of assets       $ 700  
URUGUAY          
Finite-Lived Intangible Assets [Line Items]          
Impairment of assets       $ 2,800  
Software systems          
Finite-Lived Intangible Assets [Line Items]          
Impairment of indefinite lived intangible assets $ 300 $ 400 $ 1,900