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Loans and Lease Finance Receivables and Allowance for Loan Losses - Summary of Loan, Excluding PCI Loans by Internal Risk Ratings (Detail) (Loans, Excluding PCI Loans [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial $ 403,600us-gaap_LoansReceivableCommercialAndIndustrial $ 390,011us-gaap_LoansReceivableCommercialAndIndustrial
SBA 126,385us-gaap_LoansReceivableCommercialTradeFinancing 134,265us-gaap_LoansReceivableCommercialTradeFinancing
Commercial real estate, Owner occupied 757,810us-gaap_LoansReceivableCommercialRealEstate 790,367us-gaap_LoansReceivableCommercialRealEstate
Commercial real estate, Non-owner occupied 1,741,373cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied 1,697,436cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
Construction, Speculative 38,146us-gaap_LoansReceivableCommercialDevelopment 36,574us-gaap_LoansReceivableCommercialDevelopment
Construction, Non-speculative 17,200us-gaap_LoansAndLeasesReceivableConsumerConstruction  
Construction, Non-speculative   18,599us-gaap_LoansReceivableCommercialConstruction
SFR mortgage 205,132us-gaap_LoansAndLeasesReceivableConsumerMortgage 205,124us-gaap_LoansAndLeasesReceivableConsumerMortgage
Dairy & livestock and agribusiness 173,441us-gaap_LoansReceivableCommercialFinancialAndAgricultural 279,173us-gaap_LoansReceivableCommercialFinancialAndAgricultural
Municipal lease finance receivables 76,220us-gaap_LoansAndLeasesReceivableCommercialGovernments 77,834us-gaap_LoansAndLeasesReceivableCommercialGovernments
Consumer and other loans 70,749us-gaap_LoansAndLeasesReceivableConsumerOther 69,884us-gaap_LoansAndLeasesReceivableConsumerOther
Total gross loans, excluding PCI loans 3,610,056cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans 3,699,267cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
Pass [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 252,537us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 234,029us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
SBA 80,047us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 84,769us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Commercial real estate, Owner occupied 551,211us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 552,072us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Commercial real estate, Non-owner occupied 1,390,414cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 1,347,006cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Construction, Speculative 27,394us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 28,310us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Construction, Non-speculative 16,579us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		  
Construction, Non-speculative   18,071us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
SFR mortgage 176,298us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 174,311us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Dairy & livestock and agribusiness 103,616us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 174,783us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Municipal lease finance receivables 38,562us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 35,463us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Consumer and other loans 54,900us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 62,904us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Total gross loans, excluding PCI loans 2,691,558cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember		 2,711,718cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_PassMember
Watch List [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 96,106us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 105,904us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
SBA 22,423us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 24,124us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Commercial real estate, Owner occupied 139,446us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 159,908us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Commercial real estate, Non-owner occupied 258,838cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 241,809cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Construction, Speculative 3,101us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 613us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Construction, Non-speculative 621us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		  
Construction, Non-speculative   528us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
SFR mortgage 18,882us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 20,218us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Dairy & livestock and agribusiness 67,149us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 85,660us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Municipal lease finance receivables 32,403us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 22,349us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Consumer and other loans 10,487us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 2,233us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Total gross loans, excluding PCI loans 649,456cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember		 663,346cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= cvbf_WatchListMember
Special Mention [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 42,377us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 33,795us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
SBA 14,362us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 15,858us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Commercial real estate, Owner occupied 49,994us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 46,248us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Commercial real estate, Non-owner occupied 37,420cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 56,353cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Construction, Speculative 0us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 0us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Construction, Non-speculative 0us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		  
Construction, Non-speculative   0us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
SFR mortgage 4,285us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 2,442us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Dairy & livestock and agribusiness 2,277us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 8,612us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Municipal lease finance receivables 5,255us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 20,022us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Consumer and other loans 2,670us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 1,789us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Total gross loans, excluding PCI loans 158,640cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember		 185,119cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SpecialMentionMember
Substandard [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 12,350us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 16,031us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
SBA 8,070us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 7,920us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Commercial real estate, Owner occupied 17,159us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 32,139us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Commercial real estate, Non-owner occupied 54,701cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 52,268cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Construction, Speculative 7,651us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 7,651us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Construction, Non-speculative 0us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		  
Construction, Non-speculative   0us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
SFR mortgage 5,667us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 8,153us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Dairy & livestock and agribusiness 296us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 10,015us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Municipal lease finance receivables 0us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 0us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Consumer and other loans 2,595us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 2,763us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Total gross loans, excluding PCI loans 108,489cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember		 136,940cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_SubstandardMember
Doubtful & Loss [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 230us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 252us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
SBA 1,483us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 1,594us-gaap_LoansReceivableCommercialTradeFinancing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Commercial real estate, Owner occupied 0us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 0us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Commercial real estate, Non-owner occupied 0cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 0cvbf_LoansReceivableCommercialRealEstateNonOwnerOccupied
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Construction, Speculative 0us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 0us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Construction, Non-speculative 0us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		  
Construction, Non-speculative   0us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
SFR mortgage 0us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 0us-gaap_LoansAndLeasesReceivableConsumerMortgage
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Dairy & livestock and agribusiness 103us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 103us-gaap_LoansReceivableCommercialFinancialAndAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Municipal lease finance receivables 0us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 0us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Consumer and other loans 97us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 195us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember
Total gross loans, excluding PCI loans $ 1,913cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember		 $ 2,144cvbf_LoansAndLeasesReceivableGrossCarryingAmountNonCoveredLoans
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvbf_LoansExcludingPurchasedCreditImpairedLoansMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_DoubtfulMember