FAIR VALUE MEASUREMENT (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of changes in assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs

The changes in the fair value of the Company's Level 3 liabilities during the years ended December 31, 2020, 2019 and 2018 are as follows (in thousands):

	Year Ended December 31,
	2020		2019		2018
Contingent consideration, beginning of period	$	33,464	$	38,837	$	57,349
Transfers into Level 3	—		—		—
Transfers out of Level 3	—		—		—
Total net losses included in earnings (realized and unrealized)	5,327		28,402		10,788
Purchases, sales and settlements:
Additions	—		—		19,700
Payments	(30,542)		(33,775)		(49,000)
Contingent consideration, end of period	$	8,249	$	33,464	$	38,837

Schedule of quantitative information about Level 3 fair value measurements

The following table provides quantitative information about Level 3 fair value measurements.

	Fair Value at December 31, 2020		Valuation Technique	Unobservable Input	Range (Weighted Average)(a)
	(in thousands)
Contingent consideration	$	8,249	Option pricing model	Operating results growth rate	4.8	%
				Discount rate	6.8	%

(a) Discount rates are weighted by the relative undiscounted value of expected earnout payments. Other unobservable inputs are weighted by the relative maximum potential earnout payments.