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Loans and Lease Finance Receivables and Allowance for Loan Losses - Schedule of Held-for-Investment Loans, Excluding PCI Loans, Individually Evaluated for Impairment by Class of Loans (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, Total impaired loans $ 68,377us-gaap_ImpairedFinancingReceivableRecordedInvestment $ 106,596us-gaap_ImpairedFinancingReceivableRecordedInvestment $ 85,792us-gaap_ImpairedFinancingReceivableRecordedInvestment
Unpaid Principal Balance, Total impaired loans 82,063us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance 118,725us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance 100,527us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Related Allowance, Total impaired loans 794us-gaap_ImpairedFinancingReceivableRelatedAllowance 4,001us-gaap_ImpairedFinancingReceivableRelatedAllowance 1,549us-gaap_ImpairedFinancingReceivableRelatedAllowance
Average Recorded Investment, Total impaired loans 69,267us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment 107,583us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment  
Interest Income Recognized, Total impaired loans 647us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod 854us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod  
Recorded Investment, With no related allowance recorded 66,670us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment 90,983us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment 81,905us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Unpaid Principal Balance, With no related allowance recorded 79,944us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance 101,579us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance 95,968us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
Average Recorded Investment, With no related allowance recorded 67,533us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment 91,747us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment  
Interest Income Recognized, With no related allowance recorded 647us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod 779us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod  
Recorded Investment, With a related allowance recorded 1,707us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment 15,613us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment 3,887us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Unpaid Principal Balance, With a related allowance recorded 2,119us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance 17,146us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance 4,559us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Related Allowance, With a related allowance recorded 794cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance 4,001cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance 1,549cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
Average Recorded Investment, With a related allowance recorded 1,734us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment 15,836us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod 75us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod  
Commercial and industrial [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 1,004us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 2,592us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 2,391us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember
Unpaid Principal Balance, With no related allowance recorded 1,819us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 2,862us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 3,624us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember
Average Recorded Investment, With no related allowance recorded 1,017us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 2,596us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		  
Interest Income Recognized, With no related allowance recorded 8us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 15us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		  
Recorded Investment, With a related allowance recorded 607us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 1,699us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 629us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember
Unpaid Principal Balance, With a related allowance recorded 680us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 2,033us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 698us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember
Related Allowance, With a related allowance recorded 592cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 814cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 615cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember
Average Recorded Investment, With a related allowance recorded 617us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 1,701us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialAndIndustrialLoansMember		  
Small Business Administration [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 3,117us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 1,581us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 1,853us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember
Unpaid Principal Balance, With no related allowance recorded 3,667us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 1,997us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 2,197us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember
Average Recorded Investment, With no related allowance recorded 3,177us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 1,634us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		  
Interest Income Recognized, With no related allowance recorded 13us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		  
Recorded Investment, With a related allowance recorded 41us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 68us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 1,327us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember
Unpaid Principal Balance, With a related allowance recorded 54us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 76us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 1,591us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember
Related Allowance, With a related allowance recorded 42cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 68cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 296cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember
Average Recorded Investment, With a related allowance recorded 45us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 70us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_SmallBusinessAdministrationLoansMember		  
Commercial real estate Owner occupied [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 6,117us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 10,108us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 16,961us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember
Unpaid Principal Balance, With no related allowance recorded 7,167us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 10,768us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 18,166us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember
Average Recorded Investment, With no related allowance recorded 6,185us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 10,221us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		  
Interest Income Recognized, With no related allowance recorded 64us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 117us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		  
Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 1,871us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember
Unpaid Principal Balance, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 2,344us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember
Related Allowance, With a related allowance recorded 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 320cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember
Average Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 1,871us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateOwnerOccupiedMember		  
Commercial real estate Non-owner occupied [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 34,808us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 21,928us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 30,068us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember
Unpaid Principal Balance, With no related allowance recorded 42,718us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 27,740us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 38,156us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember
Average Recorded Investment, With no related allowance recorded 35,194us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 22,103us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		  
Interest Income Recognized, With no related allowance recorded 350us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 215us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		  
Recorded Investment, With a related allowance recorded 961us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 982us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember
Unpaid Principal Balance, With a related allowance recorded 1,278us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 1,278us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember
Related Allowance, With a related allowance recorded 154cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 154cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember
Average Recorded Investment, With a related allowance recorded 973us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_CommercialRealEstateNonOwnerOccupiedMember		  
Construction Speculative [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 7,651us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 17,519us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Unpaid Principal Balance, With no related allowance recorded 7,651us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 18,407us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Average Recorded Investment, With no related allowance recorded 7,651us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 17,550us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Interest Income Recognized, With no related allowance recorded 96us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 77us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember
Unpaid Principal Balance, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember
Related Allowance, With a related allowance recorded 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember
Average Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionSpeculativeMember		  
Construction Non-speculative [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 9,169us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember
Unpaid Principal Balance, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 9,169us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember
Average Recorded Investment, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 9,184us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		  
Interest Income Recognized, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 140us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		  
Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember
Unpaid Principal Balance, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember
Related Allowance, With a related allowance recorded 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember
Average Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_ConstructionNonSpeculativeMember		  
SFR mortgage [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 5,913us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 11,214us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 6,512us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Unpaid Principal Balance, With no related allowance recorded 6,642us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 12,911us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 7,493us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Average Recorded Investment, With no related allowance recorded 5,940us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 11,266us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		  
Interest Income Recognized, With no related allowance recorded 27us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 26us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		  
Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 478us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 467us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Unpaid Principal Balance, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 486us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 484us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Related Allowance, With a related allowance recorded 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 47cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 35cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Average Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 479us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		  
Dairy & livestock and agribusiness [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 7,277us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 16,582us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 15,796us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember
Unpaid Principal Balance, With no related allowance recorded 8,991us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 17,430us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 17,587us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember
Average Recorded Investment, With no related allowance recorded 7,533us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 16,902us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		  
Interest Income Recognized, With no related allowance recorded 85us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 189us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		  
Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 11,390us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember
Unpaid Principal Balance, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 12,042us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember
Related Allowance, With a related allowance recorded 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 2,656cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember
Average Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 11,608us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		 75us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_DairyLivestockAndAgribusinessMember		  
Municipal lease finance receivables [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember
Unpaid Principal Balance, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember
Average Recorded Investment, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		  
Interest Income Recognized, With no related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		  
Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember
Unpaid Principal Balance, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember
Related Allowance, With a related allowance recorded 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember
Average Recorded Investment, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		  
Interest Income Recognized, With a related allowance recorded 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= cvbf_MunicipalLeaseFinanceReceivablesMember		  
Consumer and other loans [Member]      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Recorded Investment, With no related allowance recorded 783us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 290us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 673us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember
Unpaid Principal Balance, With no related allowance recorded 1,289us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 295us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 1,094us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember
Related Allowance, With no related allowance recorded 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 0cvbf_ImpairedFinancingReceivableWithNoRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember
Average Recorded Investment, With no related allowance recorded 836us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 291us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		  
Interest Income Recognized, With no related allowance recorded 4us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		  
Recorded Investment, With a related allowance recorded 98us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 107us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 482us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember
Unpaid Principal Balance, With a related allowance recorded 107us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 165us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 508us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember
Related Allowance, With a related allowance recorded 6cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 96cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 449cvbf_ImpairedFinancingReceivableRelatedAllowanceWithRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember
Average Recorded Investment, With a related allowance recorded 99us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 107us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		  
Interest Income Recognized, With a related allowance recorded $ 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember		 $ 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerLoanMember