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Covered Assets and FDIC Loss Sharing Asset - Summary of Covered Loans by Internal Risk Ratings (Detail) (Covered Loans [Member], USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross covered loans | $ 173,104 | $ 220,559
Pass [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross covered loans | 38,961 | 52,637
Watch List [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross covered loans | 74,369 | 72,803
Special Mention [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross covered loans | 15,492 | 31,689
Substandard [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross covered loans | 44,241 | 63,354
Doubtful & Loss [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross covered loans | $ 41 | $ 76

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- Definition Reflects the aggregate gross carrying amount of loans and leases held in the portfolio that are covered by loss sharing agreements with the FDIC. + References No definition available. + Details
Name: | cvbf_GrossCoveredLoans
Namespace Prefix: | cvbf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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