PREMISES AND EQUIPMENT (Narrative) (Details) - USD ($) $ in Millions  | 
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019  | 
Dec. 31, 2018  | 
Dec. 31, 2017  | 
|
| Property, Plant and Equipment [Abstract] | |||
| Depreciation expense | $ 15.0 | $ 13.6 | $ 10.9 | 
| X | ||||||||||
- Definition Depreciation Adjusted for Discontinued Operations. No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
  |