XML 56 R38.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements - Additional Information (Detail) (USD $)
3 Months Ended
Jan. 31, 2015
Debt Instrument Fair Value Carrying Value [Abstract]  
Business acquisition contingent consideration expense $ 0cvgw_BusinessCombinationContingentConsiderationExpense
Business acquisition contingent consideration expense in future period $ 0us-gaap_BusinessCombinationAcquisitionRelatedCosts