Quarterly Financial Data	12 Months Ended
Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	25. SUBSEQUENT EVENTS On January 7, 2022, the Company completed the previously announced merger transaction whereby Suncrest Bank ("Suncrest") merged with and into the Company's wholly-owned subsidiary Citizens Business Bank ("Citizens"), in accordance with the terms and conditions of that certain Agreement and Plan of Reorganization and Merger ("Merger Agreement"), dated as of July 27,2021, by and among the Company, Citizens and Suncrest, in a stock and cash transaction valued at approximately $237 million in aggregate, or $18.63 per Suncrest share based on CVB Financial Corp's closing stock price of $22.87 on January 7, 2022. Under the terms of the Merger Agreement, the Company issued approximately 8.6 million shares of Company common stock and approximately $39.6 million in aggregate cash consideration, including cash paid out in settlement of outstanding incentive stock option awards at Suncrest. Suncrest Bank, headquartered in Visalia, California, had approximately $1.4 billion in total assets, $0.8 billion in net loans, $1.2 billion in total deposits and $179.0 million in total equity as of December 31, 2021. Tangible book value per share was $11.16 at December 31, 2021. Suncrest's seven branch locations and two loan production offices in California's Central Valley and the Sacramento area opened as Citizens Business Bank locations on January 10, 2022.

Quarterly Financial Data

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

25. SUBSEQUENT EVENTS

On January 7, 2022, the Company completed the previously announced merger transaction whereby Suncrest Bank ("Suncrest") merged with and into the Company's wholly-owned subsidiary Citizens Business Bank ("Citizens"), in accordance with the terms and conditions of that certain Agreement and Plan of Reorganization and Merger ("Merger Agreement"), dated as of July 27,2021, by and among the Company, Citizens and Suncrest, in a stock and cash transaction valued at approximately $237 million in aggregate, or $18.63 per Suncrest share based on CVB Financial Corp's closing stock price of $22.87 on January 7, 2022. Under the terms of the Merger Agreement, the Company issued approximately 8.6 million shares of Company common stock and approximately $39.6 million in aggregate cash consideration, including cash paid out in settlement of outstanding incentive stock option awards at Suncrest.

Suncrest Bank, headquartered in Visalia, California, had approximately $1.4 billion in total assets, $0.8 billion in net loans, $1.2 billion in total deposits and $179.0 million in total equity as of December 31, 2021. Tangible book value per share was $11.16 at December 31, 2021. Suncrest's seven branch locations and two loan production offices in California's Central Valley and the Sacramento area opened as Citizens Business Bank locations on January 10, 2022.