XML 77 R114.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segment Reporting - Narrative (Details)
12 Months Ended
Oct. 31, 2014
segments
Segment Reporting Information [Line Items]  
Number Of Segments 4us-gaap_NumberOfReportableSegments
Concentration Risk, Customer 0
North America Parts [Member]  
Segment Reporting Information [Line Items]  
Number Of Regional Parts Distribution Centers 12nav_NumberOfRegionalPartsDistributionCenters
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaPartsMember