Quarterly report pursuant to Section 13 or 15(d)

LOANS AND ALLOWANCE FOR LOAN LOSSES (Purchased Impaired Commercial and Consumer Loan Portfolios by Class) (Details)

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Purchased Impaired Commercial and Consumer Loan Portfolios by Class) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2013
Dec. 31, 2012
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current $ 4,972,573 $ 2,994,187    
Fair value of loans acquired with a deterioration of credit quality 119,743 3,622 3,951  
Commercial Construction [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 298,449 212,079    
Fair value of loans acquired with a deterioration of credit quality 4,455       
Commercial Real Estate - Owner Occupied [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 821,891 497,955    
Fair value of loans acquired with a deterioration of credit quality 27,710       
Commercial Real Estate - Non-Owner Occupied [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 1,376,699 753,507    
Fair value of loans acquired with a deterioration of credit quality 38,831       
Raw Land and Lots [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 196,202 181,045    
Fair value of loans acquired with a deterioration of credit quality 8,804 2,457    
Single Family Investment Real Estate [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 382,149 233,053    
Fair value of loans acquired with a deterioration of credit quality 19,337 275    
Commercial and Industrial [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 370,890 211,134    
Fair value of loans acquired with a deterioration of credit quality 4,642       
Other Commercial [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 74,415 52,226    
Fair value of loans acquired with a deterioration of credit quality 2,242       
Indirect Auto [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 192,789 171,998    
Fair value of loans acquired with a deterioration of credit quality    7    
Mortgage [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 450,764 225,649    
Fair value of loans acquired with a deterioration of credit quality 9,367       
Consumer Construction [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 74,846 48,776    
Fair value of loans acquired with a deterioration of credit quality 534       
HELOCs [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 487,551 277,013    
Fair value of loans acquired with a deterioration of credit quality 2,121 787    
Other Consumer [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
Current 182,655 69,174    
Fair value of loans acquired with a deterioration of credit quality 1,700 96    
Purchased Impaired [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 11,729 40    
Greater than 90 Days 11,493 31    
Current 96,521 3,551    
Fair value of loans acquired with a deterioration of credit quality 119,743 3,622 3,951 4,565
Purchased Impaired [Member] | Commercial Construction [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 382      
Greater than 90 Days 698      
Current 3,375      
Fair value of loans acquired with a deterioration of credit quality 4,455      
Purchased Impaired [Member] | Commercial Real Estate - Owner Occupied [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 1,218      
Greater than 90 Days 989      
Current 25,503      
Fair value of loans acquired with a deterioration of credit quality 27,710      
Purchased Impaired [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 2,531      
Greater than 90 Days 1,776      
Current 34,524      
Fair value of loans acquired with a deterioration of credit quality 38,831      
Purchased Impaired [Member] | Raw Land and Lots [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 663       
Greater than 90 Days          
Current 8,141 2,457    
Fair value of loans acquired with a deterioration of credit quality 8,804 2,457    
Purchased Impaired [Member] | Single Family Investment Real Estate [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 1,903       
Greater than 90 Days 2,745       
Current 14,689 275    
Fair value of loans acquired with a deterioration of credit quality 19,337 275    
Purchased Impaired [Member] | Commercial and Industrial [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 592      
Greater than 90 Days 277      
Current 3,773      
Fair value of loans acquired with a deterioration of credit quality 4,642      
Purchased Impaired [Member] | Other Commercial [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 514      
Greater than 90 Days 791      
Current 937      
Fair value of loans acquired with a deterioration of credit quality 2,242      
Purchased Impaired [Member] | Indirect Auto [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due         
Greater than 90 Days         
Current   7    
Fair value of loans acquired with a deterioration of credit quality   7    
Purchased Impaired [Member] | Mortgage [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 3,342      
Greater than 90 Days 2,884      
Current 3,141      
Fair value of loans acquired with a deterioration of credit quality 9,367      
Purchased Impaired [Member] | Consumer Construction [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due         
Greater than 90 Days 534      
Fair value of loans acquired with a deterioration of credit quality 534      
Purchased Impaired [Member] | HELOCs [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 399       
Greater than 90 Days 625 31    
Current 1,097 756    
Fair value of loans acquired with a deterioration of credit quality 2,121 787    
Purchased Impaired [Member] | Other Consumer [Member]
       
Schedule of purchased impaired commercial and consumer loan portfolios, by class        
30-89 Days Past Due 185 40    
Greater than 90 Days 174       
Current 1,341 56    
Fair value of loans acquired with a deterioration of credit quality $ 1,700 $ 96