FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

The following fair values are estimated using market information and what the Company believes to be appropriate valuation methodologies under GAAP:

	December 31, 2017								December 31, 2016
(in thousands)	Carrying amount		Fair value						Carrying amount		Fair value
			Level 1		Level 2		Level 3				Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	105,006	$	105,006	$	—	$	—	$	149,294	$	149,294	$	—	$	—
Restricted cash	3,837		3,837		—		—		4,127		4,127		—		—
Available for sale securities	49,153		49,153		—		—		45,754		45,754		—		—
Liabilities:
Acquisition contingent consideration	—		—		—		—		376		—		—		376
Long-term debt	413,581		—		407,377		—		479,653		—		474,856		—