Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details)

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COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2012
Commitments with off-balance sheet risk:      
Total commitments with off-balance sheet risk $ 1,104,773 $ 1,023,628  
Commitments with balance sheet risk:      
Loans held for sale 109,395 167,698 100,066
Total other commitments 1,214,168 1,191,326  
Commitments to Extend Credit [Member]
     
Commitments with off-balance sheet risk:      
Total commitments with off-balance sheet risk 931,133 [1] 844,766 [1]  
Standby Letters of Credit [Member]
     
Commitments with off-balance sheet risk:      
Total commitments with off-balance sheet risk 54,396 45,536  
Mortgage Rate Lock Commitments [Member]
     
Commitments with off-balance sheet risk:      
Total commitments with off-balance sheet risk $ 119,244 $ 133,326  
[1] Includes unfunded overdraft protection.