BUSINESS COMBINATIONS - Schedule of Changes to Goodwill Subsequent to Acquisition (Details) - Beneficial $ in Thousands	11 Months Ended
Feb. 29, 2020 USD ($)
Goodwill [Roll Forward]
Goodwill beginning balance	$ 309,486
Goodwill ending balance	306,821
Deposits
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	790
Deferred income taxes
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	1,007
Investment securities
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	(3,131)
Cash
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	246
Loans
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	911
Premises and equipment
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	(741)
Other assets
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	(416)
Other liabilities
Goodwill [Roll Forward]
Goodwill, purchase accounting adjustments	$ (1,331)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e961-128460

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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