NON COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 5) (USD $)	12 Months Ended								12 Months Ended				12 Months Ended									12 Months Ended										12 Months Ended				12 Months Ended
	Dec. 31, 2011 M note	Sep. 30, 2011	Dec. 31, 2011 Performing loan	Dec. 31, 2010 Performing loan	Dec. 31, 2011 Performing loan A/B Note Splits	Dec. 31, 2010 Performing loan A/B Note Splits	Dec. 31, 2011 Nonperforming loan	Dec. 31, 2010 Nonperforming loan	Dec. 31, 2011 Residential D	Dec. 31, 2011 Residential Modifications using non-market interest rate changes, maturity extensions and/or AB note splits	Dec. 31, 2011 Residential Performing loan	Dec. 31, 2011 Residential Nonperforming loan	Dec. 31, 2011 Residential Residential Single-family contract		Dec. 31, 2011 Residential Residential Multifamily contract		Dec. 31, 2011 Commercial Real Estate ("CRE") D	Dec. 31, 2011 Commercial Real Estate ("CRE") Modifications using A/B Note Splits and/or maturity extensions	Dec. 31, 2011 Commercial Real Estate ("CRE") Modifications using forbearance payments, and/or non-market interest changes	Dec. 31, 2011 Commercial Real Estate ("CRE") Performing loan	Dec. 31, 2011 Commercial Real Estate ("CRE") Nonperforming loan	Dec. 31, 2011 Commercial Real Estate ("CRE") Income producing contract		Dec. 31, 2011 Commercial Real Estate ("CRE") Construction contract		Dec. 31, 2011 Commercial Real Estate ("CRE") Land contract		Dec. 31, 2011 Commercial and Industrial ("C&I") D	Dec. 31, 2011 Commercial and Industrial ("C&I") Modifications using non-market interest rate changes, maturity extensions and/or AB note splits	Dec. 31, 2011 Commercial and Industrial ("C&I") Performing loan	Dec. 31, 2011 Commercial and Industrial ("C&I") Nonperforming loan	Dec. 31, 2011 Commercial and Industrial ("C&I") Commercial Business contract		Dec. 31, 2011 Commercial and Industrial ("C&I") Trade finance contract		Dec. 31, 2011 Consumer D
Restructured loans disclosures
Number of notes into which A/B notes are split	2
Number of consecutive months of payments considered demonstration of sustained period of performance	6
Loan balance of restructured loans			$ 99,600,000	$ 122,100,000	$ 22,800,000	$ 57,300,000	$ 38,900,000	$ 42,100,000		$ 7,900,000	$ 19,100,000	$ 2,700,000						$ 40,600,000	$ 27,900,000	$ 60,200,000	$ 34,600,000								$ 20,800,000	$ 20,300,000	$ 1,600,000
Number of contracts modified as TDRs													13		15							11		3		11						24		1
Pre-Modification Outstanding Recorded Balance													3,102,000		6,442,000							32,404,000		3,740,000		35,554,000						18,247,000		4,127,000
Post-Modification Outstanding Recorded Balance													2,972,000	[1]	4,903,000	[1]						29,933,000	[1]	4,221,000	[1]	34,381,000	[1]					16,706,000	[1]	4,127,000	[1]
Financial Impact													665,000	[2]	1,279,000	[2]						4,983,000	[2]	220,000	[2]	4,279,000	[2]					4,443,000	[2]
Disclosures on loans modified as TDRs that subsequently defaulted
Period beyond which a TDR generally becomes delinquent (in days)									90								30											30								30
Number of contracts modified as TDRs that subsequently defaulted																								1		1						2
Balance of loans modified as TDRs that subsequently defaulted																								890,000		11,695,000						307,000
Allowance for troubled debt restructurings loans receivable			10,500,000				139,000
Disclosures related to adoption of ASU 2011-02
Recorded investment in receivables for which allowance measurement changed		17,800,000
Related allowance for receivables for which allowance measurement changed		$ (2,200,000)

[1] Includes subsequent payments after modification and reflects the balance as of December 31, 2011.

[2] The financial impact includes chargeoffs at modification date and specific reserves.