FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2017

FAIR VALUE MEASUREMENTS

Summary of fair value measurements within the hierarchy

	December 31, 2017						December 31, 2016
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
	(in thousands)
Measured on a recurring basis:
Contingent consideration	$	—	$	—	$	6,800	$	—	$	—	$	9,700
Additional disclosures:
Long-term debt		—		541,147		—		—		559,509		—
Total	$	—	$	541,147	$	6,800	$	—	$	559,509	$	9,700