SECURITIES - Additional Information (Details) $ in Thousands	6 Months Ended
Jun. 30, 2021 USD ($) security	Dec. 31, 2020 USD ($) security
SECURITIES
Financing Receivable, Recorded Investment, Current	$ 0
Available Sale Of Securities Interest Receivables	6,100	$ 5,700
Carrying value of securities pledged to public deposits	$ 795,300	$ 576,000
Number of securities in the portfolio that were in an unrealized loss position \| security	145	71
Provision for credit losses	$ 0

Amount of financing receivable not past due.

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 80
-URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant