XML 120 R88.htm IDEA: XBRL DOCUMENT

Junior Subordinated Debentures - Additional Information (Detail) (USD $)		12 Months Ended				12 Months Ended
	Dec. 31, 2012 CVB Statutory Trust II [Member]	Dec. 31, 2012 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, 2012 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]
Debt Instrument [Line Items]
Trust Preferred Securities, Offered fair value	$ 20,619,000				$ 40,000,000			$ 25,000,000
Proceeds from the offering and other cash					$ 41,238,000			$ 25,774,000
Maximum Period of Deferred payments of interest		20 consecutive quarters				20 consecutive quarters
Trust preferred securities, maturity date		Jan. 07, 2034				Mar. 15, 2036
Trust Preferred Securities, fixed interest rate during first five years		6.46%
Trust Preferred Securities, interest rate in excess of LIBOR			2.85%				1.38%
Period of LIBOR				3 months				1 year
Trust Preferred Securities callable date		Jan. 07, 2009				Mar. 15, 2011