LOANS AND LEASES (Details 9) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Aug. 20, 2010 Los Padres Bank	Aug. 28, 2009 Affinity	Dec. 31, 2012 Real estate mortgage	Dec. 31, 2011 Real estate mortgage	Dec. 31, 2012 Real estate mortgage Hospitality	Dec. 31, 2011 Real estate mortgage Hospitality	Dec. 31, 2012 Real estate mortgage Other	Dec. 31, 2011 Real estate mortgage Other	Dec. 31, 2012 Real estate construction	Dec. 31, 2011 Real estate construction	Dec. 31, 2012 Real estate construction Residential	Dec. 31, 2011 Real estate construction Residential	Dec. 31, 2012 Real estate construction Commercial	Dec. 31, 2011 Real estate construction Commercial	Dec. 31, 2012 Commercial	Dec. 31, 2011 Commercial	Dec. 31, 2012 Commercial Collateralized	Dec. 31, 2011 Commercial Collateralized	Dec. 31, 2012 Commercial Unsecured	Dec. 31, 2011 Commercial Unsecured	Dec. 31, 2012 Consumer	Dec. 31, 2011 Consumer
Summary of the carrying values of covered loans
Estimated fair values of the covered loans acquired at respective acquisition dates			$ 436,300,000	$ 675,600,000
Total gross covered loans	594,278,000	809,621,000			555,221,000	736,358,000	2,888,000	2,944,000	552,333,000	733,414,000	23,220,000	46,918,000	5,662,000	21,521,000	17,558,000	25,397,000	15,243,000	25,610,000	14,603,000	24,808,000	640,000	802,000	594,000	735,000
Discount	(50,951,000)	(75,323,000)
Allowance for loan losses	(26,069,000)	(31,275,000)
Covered loans, net	$ 517,258,000	$ 703,023,000			$ 483,118,000	$ 642,440,000					$ 22,391,000	$ 41,099,000					$ 11,157,000	$ 19,297,000					$ 592,000	$ 187,000
Percentage of total gross covered loans	100.00%	100.00%			94.00%	91.00%			94.00%	91.00%	4.00%	6.00%	1.00%	3.00%	3.00%	3.00%	2.00%	3.00%	2.00%	3.00%