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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Detail) (USD $)
9 Months Ended
Sep. 30, 2012
Subsidiary
Significant Of Accounting Policies [Line Items]  
Number of wholly-owned subsidiaries 10
Number of unconsolidated subsidiaries 6
Percentage of Interest held by Company in Shine Investment Advisory Services Inc. 80.00%
Business acquisition date Oct. 17, 2012
Business acquisition cost $ 27,500,000
Shares issued 2,966,236
Combined assets after merger 3,090,000,000
Combined deposits after merger 2,550,000,000
Minimum period of internal loss allowance calculation modal 1 year
Maximum period of internal loss allowance calculation modal 3 years
Other assets 51,800,000
Other liabilities 34,600,000
Recognized net deferred tax asset $ 36,600,000