Number of shares of equity interests issued or issuable to acquire entity.

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Amount of assets acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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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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BUSINESS ACQUISITIONS - Total Consideration Transferred and Aggregate Amount of Assets Acquired and Liabilities Assumed for 2020 Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended			36 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020
Business Acquisition [Line Items]
Cash payments	$ 115,247	$ 0	$ 10,811
Goodwill	248,339	$ 194,052	$ 194,052	$ 248,339
2020 Acquisitions
Business Acquisition [Line Items]
Cash payments				115,247
Fair value of stock issued (1,480,909 shares)				29,367
Total consideration transferred				144,614
Cash	1			1
Accounts Receivable	20,204			20,204
Inventory	8,567			8,567
Other Current Assets	190			190
Property and equipment	1,811			1,811
Goodwill	90,722			90,722
Other assets	696			696
Assets acquired	161,988			161,988
Current liabilities assumed	(10,674)			(10,674)
Deferred tax liability	(6,700)			(6,700)
Net assets acquired	144,614			144,614
2020 Acquisitions \| Non-compete agreements
Business Acquisition [Line Items]
Finite-lived intangibles	2,332			2,332
2020 Acquisitions \| Customer relationships
Business Acquisition [Line Items]
Finite-lived intangibles	$ 37,465			$ 37,465
2020 Acquisitions \| Common Stock
Business Acquisition [Line Items]
Stock issued (in shares)	1,480,909