FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2019

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 first quarters of 2019 and 2018 are as follows (in thousands):

	Three Months Ended   March 31,
	2019			2018
Contingent consideration, beginning of period	$	38,837		$	57,349
Transfers into Level 3	—			—
Transfers out of Level 3	—			—
Total net losses (gains) included in earnings (realized and unrealized)	14,592			(741		)
Purchases, sales and settlements:
Additions	—			—
Payments	(4,000		)	(23,500		)
Contingent consideration, end of period	$	49,429		$	33,108