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Business - Additional Information (Detail)	Mar. 31, 2015 FinancialCenters Subsidiary
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of inactive subsidiaries	1cvbf_NumberOfInactiveSubsidiaries
Bank operated Business Financial Centers, number	40cvbf_BankOperatedBusinessFinancialCentersNumber
Bank operated Commercial Banking Centers, number	7cvbf_BankOperatedCommercialBankingCentersNumber
Bank operated trust office locations, number	3cvbf_BankOperatedWealthManagementOfficesNumber

X

- Definition

Bank operated business financial centers, number.

+ References

No definition available.

+ Details

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X

- Definition

Bank operated commercial banking centers, number.

+ References

No definition available.

+ Details

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Namespace Prefix:	cvbf_
Data Type:	xbrli:integerItemType
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X

- Definition

Bank operated wealth management offices, number.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

Number of inactive subsidiaries.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Details

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