OTHER ASSETS (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of other assets

Other assets as of December 31, 2018 and 2017 consisted of the following (in thousands):

	2018		2017
Equity method investments	$	72,371	$	123,923
Other equity investments	44,625		45,222
Post-retirement plan assets	28,081		22,659
Other	39,754		49,841
Total other assets	$	184,831	$	241,645

Equity Method Investments

As described under Principles of Consolidation within Note 1. Nature of Operations and Summary of Significant Accounting Policies, we record our proportionate share of net income generated by equity method investees in (loss) income from equity method investments within our consolidated statements of operations. The summarized results of operations and financial position of the investments accounted for under the equity method are as follows (in thousands):

	For the Years Ended December 31,
	2018			2017			2016
Revenues, net	$	145,253		$	115,054		$	82,524
Operating (loss) income	$	(58,359	)	$	(17,470	)	$	7,804
Net loss	$	(81,596	)	$	(41,926	)	$	(2,285	)

	As of December 31,
	2018		2017
Current assets	$	27,961	$	31,602
Noncurrent assets	$	710,831	$	777,619
Current liabilities	$	52,527	$	27,864
Noncurrent liabilities	$	543,604	$	550,260