FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables)

6 Months Ended

Jun. 30, 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:

	June 30, 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	$	84,569	$	84,569	$	—	$	—	$	105,006	$	105,006	$	—	$	—
Restricted cash	5,783		5,783		—		—		3,837		3,837		—		—
Investment in equity securities	43,185		43,185		—		—		49,153		49,153		—		—
Liabilities:
Long-term debt	403,760		—		401,067		—		413,581		—		407,377		—