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GOODWILL AND INTANGIBLE ASSETS - Schedule of good will (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill as of beginning	$ 133,082	$ 132,035
Goodwill from current year business combinations	59,257	1,047
Impairment charges	5,360
Goodwill as of ending	186,979	133,082
Rhode Island
Goodwill [Roll Forward]
Goodwill as of beginning	83,101	83,101
Goodwill from current year business combinations	0	0
Impairment charges	0
Goodwill as of ending	83,101	83,101
Mid-Atlantic
Goodwill [Roll Forward]
Goodwill as of beginning	1,047	0
Goodwill from current year business combinations	0	1,047
Impairment charges	0
Goodwill as of ending	1,047	1,047
Southeast
Goodwill [Roll Forward]
Goodwill as of beginning	48,934	48,934
Goodwill from current year business combinations	6,053	0
Impairment charges	0
Goodwill as of ending	54,987	48,934
West
Goodwill [Roll Forward]
Goodwill as of beginning	0	0
Goodwill from current year business combinations	53,204	0
Impairment charges	5,360
Goodwill as of ending	$ 47,844	$ 0

X

- Definition

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.

+ References

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- Definition

Amount of loss from the write-down 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.

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