Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS (Schedule of Business Acquisition and the Amounts of Acquired Identifiable Assets and Liabilities) (Details)

v3.19.3.a.u2
ACQUISITIONS (Schedule of Business Acquisition and the Amounts of Acquired Identifiable Assets and Liabilities) (Details) - USD ($)
 12 Months Ended
Feb. 01, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Acquisition [Line Items]        
Cash paid in acquisition   $ 12,000 $ 14,304,000 $ 231,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]        
Goodwill   $ 935,560,000 $ 727,168,000  
Access National Bank        
Business Acquisition [Line Items]        
Fair value of shares of the Company's common stock issued & warrants converted $ 499,974,000      
Cash paid in acquisition 12,000      
Total purchase price 499,986,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]        
Cash and cash equivalents 46,164,000      
Investments 464,742,000      
Loans 2,173,060,000      
Premises and equipment 24,198,000      
Core deposit intangibles 40,860,000      
Other assets 100,649,000      
Total assets 2,849,673,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]        
Deposits 2,227,073,000      
Short-term borrowings 220,685,000      
Long-term borrowings 70,535,000      
Other liabilities 39,770,000      
Total liabilities 2,558,063,000      
Net identifiable assets acquired 291,610,000      
Goodwill $ 208,376,000