XML 47 R37.htm IDEA: XBRL DOCUMENT v3.21.2
LOANS AND CREDIT QUALITY - Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]        
Accounting Standards Update [Extensible List]     Accounting Standards Update 2016-13 [Member] Accounting Standards Update 2016-13 [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]        
Beginning balance $ 59,897 $ 65,000 $ 64,294 $ 41,772
Provision for credit losses (5,348) 273 (9,864) 21,633
Net (charge-offs) recoveries (33) (381) 86 (356)
Impact of ASC 326 adoption 54,516 64,892 54,516 64,892
Ending balance 54,516 64,892 54,516 64,892
Allowance for unfunded commitments:        
Beginning balance 2,104 2,071 1,588 1,065
Provision for credit losses 348 (273) 864 (1,164)
Impact of ASC 326 adoption 2,452 1,798 2,452 1,798
Ending balance 2,452 1,798 2,452 1,798
Total $ (5,000) $ 0 $ (9,000) 20,469
Cumulative Effect, Period of Adoption, Adjustment        
Accounts Receivable, Allowance for Credit Loss [Roll Forward]        
Beginning balance       1,843
Impact of ASC 326 adoption        
Allowance for unfunded commitments:        
Beginning balance       $ 1,897
Impact of ASC 326 adoption