Business Segments - Additional Information (Detail)	6 Months Ended
Jun. 30, 2013 Segment FinancialCenters
Segment Reporting [Abstract]
Number of principal reporting segments	2
Bank operated Business Financial Centers, number	40
Bank operated Commercial Banking Centers, number	5
Consideration of Business Financial and Commercial Banking Center	1

Consideration of business financial and commercial banking center.

No definition available.

Name:	cvbf_ConsiderationOfBusinessFinancialAndCommercialBankingCenter
Namespace Prefix:	cvbf_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration