Junior Subordinated Debentures (Details Textual) (USD $)	12 Months Ended				12 Months Ended				12 Months Ended			12 Months Ended
	Dec. 31, 2011 CVB Statutory Trust I [Member] Junior subordinated debenture held by CVB Statutory Trust I [Member]	Dec. 31, 2008 CVB Statutory Trust I [Member] Junior subordinated debenture held by CVB Statutory Trust I [Member]	Dec. 17, 2008 CVB Statutory Trust I [Member] Junior subordinated debenture held by CVB Statutory Trust I [Member]	Dec. 17, 2003 CVB Statutory Trust I [Member] Junior subordinated debenture held by CVB Statutory Trust I [Member]	Dec. 31, 2011 CVB Statutory Trust II [Member] Junior subordinated debenture held by CVB Statutory Trust II [Member]	Dec. 31, 2009 CVB Statutory Trust II [Member] Junior subordinated debenture held by CVB Statutory Trust II [Member]	Jan. 31, 2009 CVB Statutory Trust II [Member] Junior subordinated debenture held by CVB Statutory Trust II [Member]	Dec. 15, 2003 CVB Statutory Trust II [Member] Junior subordinated debenture held by CVB Statutory Trust II [Member]	Dec. 31, 2011 CVB Statutory Trust III [Member] Junior subordinated debenture held by CVB Statutory Trust III [Member]	Dec. 31, 2006 CVB Statutory Trust III [Member] Junior subordinated debenture held by CVB Statutory Trust III [Member]	Jan. 31, 2006 CVB Statutory Trust III [Member] Junior subordinated debenture held by CVB Statutory Trust III [Member]	Dec. 31, 2011 FCB Statutory Trust II [Member]	Dec. 31, 2008 FCB Statutory Trust II [Member]	Jul. 07, 2008 FCB Statutory Trust II [Member]	Jun. 22, 2007 FCB Statutory Trust II [Member]
Junior Subordinated Debentures (Textual) [Abstract]
Trust Preferred Securities, Offered fair value				$ 40,000,000				$ 40,000,000			$ 25,000,000				$ 6,800,000
Proceeds from the offering and other cash				$ 41,238,000				$ 41,238,000			$ 25,774,000
Maximum Period of Deferred payments of interest	20 Consecutive Quarters				20 Consecutive Quarters				20 Consecutive Quarters
Trust Preferred Securities, Maturity Date	Dec. 17, 2033				Jan. 07, 2034				Mar. 15, 2036			Oct. 07, 2033
Trust Preferred securities callable date	Dec. 17, 2008				Jan. 07, 2009				Mar. 15, 2011			Jul. 07, 2008
Trust Preferred Securities, Fixed interest rate during first five years	6.51%				6.46%
Trust Preferred Securities, Interest rate in excess of LIBOR		2.85%				2.85%				1.38%			3.25%
Period of LIBOR			3 months				3 months				1 year			1 year