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v2.4.1.9

Borrowings - Additional Information (Detail) (USD $) | 12 Months Ended | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jan. 31, 2009 | Dec. 31, 2009 | Dec. 31, 2006 | Dec. 15, 2013 | Jan. 31, 2006
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Funds borrowed under repurchase agreement | $ 563,600,000 cvbf_FundBorrowedUnderRepurchaseAgreement | $ 643,300,000 cvbf_FundBorrowedUnderRepurchaseAgreement |  |  |  |  |  |
Weighted average interest rates | 0.24%cvbf_WeightedAverageInterestRate | 0.29%cvbf_WeightedAverageInterestRate |  |  |  |  |  |
FHLB advance | 199,500,000 us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch | 199,200,000 us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch |  |  |  |  |  |
Weighted average interest rate | 4.52%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankWeightedAverageInterestRate | 4.52%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankWeightedAverageInterestRate |  |  |  |  |  |
FHLB advance maturity date | Nov. 28, 2016 |  |  |  |  |  |  |
Average outstanding balance | 199,400,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding | 199,100,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding |  |  |  |  |  |
Maximum outstanding balance | 199,500,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd | 199,200,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd |  |  |  |  |  |
Loans at carrying value | 2,780,000,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount |  |  |  |  |  |  |
Investment securities at carrying value | 3,110,000,000 cvbf_InvestmentSecurities |  |  |  |  |  |  |
Prepayment penalties on borrowings | 0 cvbf_FederalHomeLoanBankAdvanceDebtObligationsRepaymentsAndPenalties | 0 cvbf_FederalHomeLoanBankAdvanceDebtObligationsRepaymentsAndPenalties | 20,400,000 cvbf_FederalHomeLoanBankAdvanceDebtObligationsRepaymentsAndPenalties |  |  |  |  |
Overnight borrowings | 46,000,000 us-gaap_DebtInstrumentFaceAmount | 69,000,000 us-gaap_DebtInstrumentFaceAmount |  |  |  |  |  |
Overnight borrowings with cost basis points | 0.10%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 | 0.06%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 |  |  |  |  |  |
CVB Statutory Trust II [Member] | Junior Subordinated Debenture Held by CVB Statutory Trust II [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Trust preferred securities, offered fair value |  |  |  |  |  |  | 40,000,000 cvbf_TrustPreferredSecuritiesIssuance / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustTwoMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiMember |
Proceeds from the offering and other cash |  |  |  |  |  |  | 41,238,000 cvbf_ProceedsFromOfferingOfTrustPreferredSecuritiesAndOtherCash / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustTwoMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiMember |
Maximum Period of Deferred payments of interest | 20 consecutive quarters |  |  |  |  |  |  |
Trust Preferred Securities, maturity date | Jan. 07, 2034 |  |  |  |  |  |  |
Trust Preferred Securities, fixed interest rate during first five years | 6.46%cvbf_TrustPreferredSecuritiesFixedInterestRateDuringFirstFiveYears / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustTwoMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiMember |  |  |  |  |  |  |
Trust Preferred Securities, interest rate in excess of LIBOR |  |  |  |  | 2.85%cvbf_InvestmentBasisSpreadOnVariableRate / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustTwoMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiMember |  |  |
Period of LIBOR |  |  |  | 3 months |  |  |  |
Trust Preferred Securities callable date | Jan. 07, 2009 |  |  |  |  |  |  |
CVB Statutory Trust III [Member] | Junior Subordinated Debenture Held by CVB Statutory Trust III [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Trust preferred securities, offered fair value |  |  |  |  |  |  |  | 25,000,000 cvbf_TrustPreferredSecuritiesIssuance / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustThreeMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiiMember
Proceeds from the offering and other cash |  |  |  |  |  |  |  | $ 25,774,000 cvbf_ProceedsFromOfferingOfTrustPreferredSecuritiesAndOtherCash / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustThreeMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiiMember
Maximum Period of Deferred payments of interest | 20 consecutive quarters |  |  |  |  |  |  |
Trust Preferred Securities, maturity date | Mar. 15, 2036 |  |  |  |  |  |  |
Trust Preferred Securities, interest rate in excess of LIBOR |  |  |  |  |  | 1.38%cvbf_InvestmentBasisSpreadOnVariableRate / dei_LegalEntityAxis = cvbf_CvbStatutoryTrustThreeMember / us-gaap_LongtermDebtTypeAxis = cvbf_JuniorSubordinatedDebentureHeldByCvbStatutoryTrustIiiMember |  |
Period of LIBOR |  |  |  | 1 year |  |  |  |
Trust Preferred Securities callable date | Mar. 15, 2011 |  |  |  |  |  |  |

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- Definition The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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