GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) company	Dec. 31, 2020 USD ($)
GOODWILL AND OTHER INTANGIBLE ASSETS
Number of acquisitions during the period \| company	4
Intangible assets acquired	$ 183,900	$ 1,900
Weighted average amortization period	14 years 1 month 6 days
Goodwill [Roll Forward]
Beginning balance	$ 248,958	180,424
Additions from acquisitions	449,677	68,534
Impairment	0	0
Ending balance	$ 698,635	$ 248,958

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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