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Income Taxes - Schedule of Income Tax Asset (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Current: |  |
Income tax asset , Current, Total | $ 8,959 cvbf_IncomeTaxAssetCurrent | $ 4,175 cvbf_IncomeTaxAssetCurrent
Deferred: |  |
Income tax asset , Deferred, Total | 22,502 us-gaap_DeferredTaxAssetsNet | 55,611 us-gaap_DeferredTaxAssetsNet
Income tax asset (liability), Total | 31,461 cvbf_IncomeTaxAssetNet | 59,786 cvbf_IncomeTaxAssetNet
Federal [Member] |  |
Current: |  |
Income tax asset , Current, Total | 4,522 cvbf_IncomeTaxAssetCurrent / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember | 2,838 cvbf_IncomeTaxAssetCurrent / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
Deferred: |  |
Income tax asset , Deferred, Total | 18,304 us-gaap_DeferredTaxAssetsNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember | 42,545 us-gaap_DeferredTaxAssetsNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
State [Member] |  |
Current: |  |
Income tax asset , Current, Total | 4,437 cvbf_IncomeTaxAssetCurrent / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember | 1,337 cvbf_IncomeTaxAssetCurrent / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
Deferred: |  |
Income tax asset , Deferred, Total | $ 4,198 us-gaap_DeferredTaxAssetsNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember | $ 13,066 us-gaap_DeferredTaxAssetsNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember

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- Definition Income tax asset current. + References No definition available. + Details
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- Definition Income Tax Asset Net + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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