Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING DISCLOSURES (Information About Reportable Segments and Reconciliation) (Details)

v3.5.0.2
SEGMENT REPORTING DISCLOSURES (Information About Reportable Segments and Reconciliation) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Segment Reporting Information [Line Items]          
Net interest income $ 65,776 $ 63,816 $ 129,507 $ 125,785  
Provision for credit losses 2,300 3,749 4,904 5,499  
Net interest income after provision for credit losses 63,476 60,067 124,603 120,286  
Noninterest income 17,993 16,212 33,907 31,266  
Noninterest expenses 55,251 55,241 109,523 109,081  
Income (loss) before income taxes 26,218 21,038 48,987 42,471  
Income tax expense 6,881 5,690 12,689 11,422  
Net income (loss) 19,337 15,348 36,298 31,049  
Total assets 8,100,561 7,497,706 8,100,561 7,497,706 $ 7,693,291
Operating Segments [Member] | Community Bank [Member]          
Segment Reporting Information [Line Items]          
Net interest income 65,478 63,441 128,903 125,164  
Provision for credit losses 2,260 3,700 4,760 5,450  
Net interest income after provision for credit losses 63,218 59,741 124,143 119,714  
Noninterest income 14,940 13,523 28,548 26,371  
Noninterest expenses 52,766 52,365 104,610 103,337  
Income (loss) before income taxes 25,392 20,899 48,081 42,748  
Income tax expense 6,594 5,646 12,376 11,527  
Net income (loss) 18,798 15,253 35,705 31,221  
Total assets 8,094,176 7,495,564 8,094,176 7,495,564  
Operating Segments [Member] | Mortgage [Member]          
Segment Reporting Information [Line Items]          
Net interest income 298 375 604 621  
Provision for credit losses 40 49 144 49  
Net interest income after provision for credit losses 258 326 460 572  
Noninterest income 3,207 2,860 5,684 5,236  
Noninterest expenses 2,639 3,047 5,238 6,085  
Income (loss) before income taxes 826 139 906 (277)  
Income tax expense 287 44 313 (105)  
Net income (loss) 539 95 593 (172)  
Total assets 75,802 55,563 75,802 55,563  
Eliminations [Member]          
Segment Reporting Information [Line Items]          
Net interest income 0 0 0 0  
Provision for credit losses 0 0 0 0  
Net interest income after provision for credit losses 0 0 0 0  
Noninterest income (154) (171) (325) (341)  
Noninterest expenses (154) (171) (325) (341)  
Income (loss) before income taxes 0 0 0 0  
Income tax expense 0 0 0 0  
Net income (loss) 0 0 0 0  
Total assets $ (69,417) $ (53,421) $ (69,417) $ (53,421)