Quarterly report pursuant to Section 13 or 15(d)

ACCOUNTING POLICIES - New Accounting Standards (Illustration of the Impact of ASC 326) (Details)

v3.20.2
ACCOUNTING POLICIES - New Accounting Standards (Illustration of the Impact of ASC 326) (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Jun. 30, 2020
Jan. 01, 2020
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2018
Item Effected [Line Items]            
Allowance for credit losses on loans $ 174,122 $ 169,977 $ 89,778 $ 42,294 $ 43,820 $ 41,045
Total Allowance for credit losses 174,122   94,838 42,294    
Previous Accounting Guidance            
Item Effected [Line Items]            
Allowance for credit losses on loans       42,294    
Total Allowance for credit losses       43,194    
Accounting Standards Update 2016-13 | Restatement Adjustment            
Item Effected [Line Items]            
Allowance for credit losses on loans     47,484      
Total Allowance for credit losses     51,644      
Commercial Portfolio            
Item Effected [Line Items]            
Allowance for credit losses on loans 126,655 111,954 37,125 30,941    
Commercial Portfolio | Previous Accounting Guidance            
Item Effected [Line Items]            
Allowance for credit losses on loans       30,941    
Commercial Portfolio | Accounting Standards Update 2016-13 | Restatement Adjustment            
Item Effected [Line Items]            
Allowance for credit losses on loans     6,184      
Consumer Portfolio            
Item Effected [Line Items]            
Allowance for credit losses on loans $ 47,467 $ 58,023 52,653 11,353    
Consumer Portfolio | Previous Accounting Guidance            
Item Effected [Line Items]            
Allowance for credit losses on loans       11,353    
Consumer Portfolio | Accounting Standards Update 2016-13 | Restatement Adjustment            
Item Effected [Line Items]            
Allowance for credit losses on loans     41,300      
Unfunded Commitments            
Item Effected [Line Items]            
Total Allowance for credit losses     5,060      
Unfunded Commitments | Previous Accounting Guidance            
Item Effected [Line Items]            
Total Allowance for credit losses       $ 900    
Unfunded Commitments | Accounting Standards Update 2016-13 | Restatement Adjustment            
Item Effected [Line Items]            
Total Allowance for credit losses     $ 4,160