GOODWILL AND OTHER INTANGIBLES - Goowill by Segment (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Goodwill [Line Items]
Beginning balance	$ 38,632	$ 28,098
Merger and acquisitions		6,303
Adjustments	(21)	4,231
Ending balance	38,611	38,632
Mortgage Banking [Member]
Goodwill [Line Items]
Beginning balance	959	0
Merger and acquisitions		574
Adjustments	53	385
Ending balance	1,012	959
Consumer Retail Banking Segment [Member]
Goodwill [Line Items]
Beginning balance	1,327	0
Merger and acquisitions		794
Adjustments	74	533
Ending balance	1,401	1,327
Commercial And Corporate Segment [Member]
Goodwill [Line Items]
Beginning balance	8,248	0
Merger and acquisitions		4,935
Adjustments	(148)	3,313
Ending balance	8,100	8,248
United States Operations Segment [Member]
Goodwill [Line Items]
Beginning balance	28,098	28,098
Merger and acquisitions		0
Adjustments	0	0
Ending balance	$ 28,098	$ 28,098

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.

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