PARTICIPATION IN THE SMALL BUSINESS LENDING FUND OF THE U.S. TREASURY DEPARTMENT (Additional Information) (Detail) (USD $)						12 Months Ended
	Jun. 21, 2011	Jun. 21, 2011 Senior Non Cumulative Perpetual Preferred Stock [Member]	Dec. 31, 2013 Series Preferred Stock [Member]	Dec. 31, 2012 Series Preferred Stock [Member]	Jun. 21, 2011 Series Preferred Stock [Member]	Dec. 31, 2011 Qualified Small Business Lending [Member]	Dec. 31, 2011 Second Through Tenth Dividend Periods [Member] Maximum [Member]	Dec. 31, 2011 Second Through Tenth Dividend Periods [Member] Minimum [Member]	Dec. 31, 2011 Eleventh Through First Half Of Nineteenth Dividend [Member] Maximum [Member]	Dec. 31, 2011 Eleventh Through First Half Of Nineteenth Dividend [Member] Minimum [Member]	Dec. 31, 2011 More Than Four and One Half Years [Member] Fixed Rate [Member]
Preferred stock, shares issued		40,000	40,000	40,000
Preferred stock, liquidation preference		$ 1,000	$ 1,000	$ 1,000
Preferred Stock, Liquidation Preference, Value		$ 40,000,000			$ 25,000,000
Fund Established Under Small Business Job Act 2010	30,000,000,000
Qualified Community Banks	$ 10,000,000,000
Preferred Stock, Dividend Rate, Percentage						1.00%	5.00%	1.00%	7.00%	1.00%	9.00%