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Fair Value Information - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) (Fair Value on Non-Recurring Basis [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Description of assets
Total assets	$ 109us-gaap_AssetsFairValueDisclosure	$ 2,846us-gaap_AssetsFairValueDisclosure
Other real estate owned [Member]
Description of assets
Total assets	33us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember
Loans, Excluding PCI Loans [Member] | Commercial and industrial [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember	771us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember
Loans, Excluding PCI Loans [Member] | Small Business Administration [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember	296us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember
Loans, Excluding PCI Loans [Member] | Commercial real estate [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember	271us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember
Loans, Excluding PCI Loans [Member] | Construction [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember
Loans, Excluding PCI Loans [Member] | SFR mortgage [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember
Loans, Excluding PCI Loans [Member] | Dairy & livestock and agribusiness [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember	1,061us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember
Loans, Excluding PCI Loans [Member] | Consumer and other loans [Member]
Description of assets
Total assets	76us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember	447us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Level 1 [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember
Level 1 [Member] | Other real estate owned [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | Commercial and industrial [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | Small Business Administration [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | Commercial real estate [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | Construction [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | SFR mortgage [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | Dairy & livestock and agribusiness [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember
Level 1 [Member] | Loans, Excluding PCI Loans [Member] | Consumer and other loans [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Level 2 [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember
Level 2 [Member] | Other real estate owned [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | Commercial and industrial [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | Small Business Administration [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | Commercial real estate [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | Construction [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | SFR mortgage [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | Dairy & livestock and agribusiness [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember
Level 2 [Member] | Loans, Excluding PCI Loans [Member] | Consumer and other loans [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Level 3 [Member]
Description of assets
Total assets	549us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember	6,323us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember
Level 3 [Member] | Other real estate owned [Member]
Description of assets
Total assets	340us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | Commercial and industrial [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember	1,911us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | Small Business Administration [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember	1,327us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | Commercial real estate [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember	2,500us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | Construction [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | SFR mortgage [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | Dairy & livestock and agribusiness [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember	103us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember
Level 3 [Member] | Loans, Excluding PCI Loans [Member] | Consumer and other loans [Member]
Description of assets
Total assets	209us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember	482us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Carrying Value [Member]
Description of assets
Total assets	549us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember	6,323us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember
Carrying Value [Member] | Other real estate owned [Member]
Description of assets
Total assets	340us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_OtherRealEstateOwnedMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | Commercial and industrial [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember	1,911us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_CommercialAndIndustrialLoansMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | Small Business Administration [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember	1,327us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_SmallBusinessAdministrationLoansMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | Commercial real estate [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember	2,500us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | Construction [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConstructionLoansMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | SFR mortgage [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialRealEstateMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | Dairy & livestock and agribusiness [Member]
Description of assets
Total assets	0us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember	103us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = cvbf_DairyLivestockAndAgribusinessMember
Carrying Value [Member] | Loans, Excluding PCI Loans [Member] | Consumer and other loans [Member]
Description of assets
Total assets	$ 209us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember	$ 482us-gaap_AssetsFairValueDisclosure / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = cvbf_LoansExcludingPurchasedCreditImpairedLoansMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
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X

- Details

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