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Fair Value Information - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2013
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |
Percentage of cost to sale of non-covered impaired loans and non-covered other real estate owned | 8.00%
Minimum [Member] |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |
Term of interest rate swap contracts by the counterparty, years | 3 years
Maximum [Member] |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |
Term of interest rate swap contracts by the counterparty, years | 30 years

X
- Definition Percentage of cost to sale of non-covered impaired loans and non-covered other real estate owned. + References No definition available. + Details
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Namespace Prefix: | cvbf_
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X
- Definition Term of interest rate swap contracts by counter party. + References No definition available. + Details
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Namespace Prefix: | cvbf_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration