INTEREST -BEARING DEPOSITS - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Interest-bearing	$ 1,506,650	$ 1,430,939
Executive Officers, Directors and Significant Shareholders
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Interest-bearing	$ 46,192	$ 59,658

The aggregate of all domestic and foreign interest-bearing deposit liabilities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Name:	us-gaap_InterestBearingDepositLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant