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Income Taxes - Additional Information (Detail) (USD $)
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 41 Months Ended
Oct. 31, 2014
Jul. 31, 2014
Apr. 30, 2014
Jan. 31, 2014
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Apr. 30, 2014
Apr. 30, 2013
Jul. 31, 2014
Jul. 31, 2013
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2014
Income Taxes [Line Items]                                
Gross deferred tax assets $ 39,700,000us-gaap_DeferredTaxAssetsGross       $ 18,600,000us-gaap_DeferredTaxAssetsGross               $ 39,700,000us-gaap_DeferredTaxAssetsGross $ 18,600,000us-gaap_DeferredTaxAssetsGross   $ 39,700,000us-gaap_DeferredTaxAssetsGross
Gross deferred tax liabilities 24,100,000us-gaap_DeferredIncomeTaxLiabilities       16,600,000us-gaap_DeferredIncomeTaxLiabilities               24,100,000us-gaap_DeferredIncomeTaxLiabilities 16,600,000us-gaap_DeferredIncomeTaxLiabilities   24,100,000us-gaap_DeferredIncomeTaxLiabilities
Net increase in deferred intangible assets                         19,100,000us-gaap_IndefiniteLivedIntangibleAssetsPeriodIncreaseDecrease      
Accumulated foreign earnings 13,200,000us-gaap_UndistributedEarningsOfForeignSubsidiaries                       13,200,000us-gaap_UndistributedEarningsOfForeignSubsidiaries     13,200,000us-gaap_UndistributedEarningsOfForeignSubsidiaries
Income (loss) before income taxes related to domestic operations                         (600,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic (10,600,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic 22,000,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic  
Income before income taxes related to foreign operations                         3,600,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 2,900,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 3,800,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign  
Benefit for income taxes (1,493,000)us-gaap_IncomeTaxExpenseBenefit (1,780,000)us-gaap_IncomeTaxExpenseBenefit 1,433,000us-gaap_IncomeTaxExpenseBenefit (2,076,000)us-gaap_IncomeTaxExpenseBenefit (6,781,000)us-gaap_IncomeTaxExpenseBenefit 3,799,000us-gaap_IncomeTaxExpenseBenefit 779,000us-gaap_IncomeTaxExpenseBenefit (2,512,000)us-gaap_IncomeTaxExpenseBenefit (643,000)us-gaap_IncomeTaxExpenseBenefit (1,733,000)us-gaap_IncomeTaxExpenseBenefit (2,423,000)us-gaap_IncomeTaxExpenseBenefit 2,066,000us-gaap_IncomeTaxExpenseBenefit (3,916,000)us-gaap_IncomeTaxExpenseBenefit (4,715,000)us-gaap_IncomeTaxExpenseBenefit 10,213,000us-gaap_IncomeTaxExpenseBenefit  
Renaissance Food Group, LLC (RFG) [Member]                                
Income Taxes [Line Items]                                
Revaluation of earn-out liability                         53,600,000cvgw_RevalueAdjustmentOnContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= cvgw_RenaissanceFoodGroupMember		 32,000,000cvgw_RevalueAdjustmentOnContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= cvgw_RenaissanceFoodGroupMember		 2,200,000cvgw_RevalueAdjustmentOnContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= cvgw_RenaissanceFoodGroupMember		 88,100,000cvgw_RevalueAdjustmentOnContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= cvgw_RenaissanceFoodGroupMember
Benefit for income taxes                         $ 3,800,000us-gaap_IncomeTaxExpenseBenefit
/ us-gaap_BusinessAcquisitionAxis
= cvgw_RenaissanceFoodGroupMember