FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2018

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, 2018								December 31, 2017
(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	$	58,294	$	58,294	$	—	$	—	$	105,006	$	105,006	$	—	$	—
Restricted cash	5,752		5,752		—		—		3,837		3,837		—		—
Investment in equity securities	36,181		36,181		—		—		49,153		49,153		—		—
Long-term receivable (Note 4)	2,221		—		—		2,221		—		—		—		—
Liabilities:
Senior secured term loan	338,822		—		330,351		—		413,581		—		407,377		—