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Business - Additional Information (Detail)	Dec. 31, 2023 Subsidiary Center
Schedule Of Description Of Company [Line Items]
Number of inactive subsidiaries | Subsidiary	1
Bank operated banking centers | Center	62

X

- Definition

Bank operated banking centers number.

+ References

No definition available.

+ Details

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Namespace Prefix:	cvbf_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of inactive subsidiaries.

+ References

No definition available.

+ Details

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Namespace Prefix:	cvbf_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Schedule Of Description Of Company [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	cvbf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration