PREPAID AND OTHER CURRENT ASSETS

9 Months Ended

Sep. 30, 2017

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

PREPAID AND OTHER CURRENT ASSETS

5. PREPAID AND OTHER CURRENT ASSETS

Prepaid and other current assets consist of the following at the dates indicated (in thousands):

	September 30, 2017		December 31, 2016
Prepaid insurance	$	13,446	$	7,609
Margin deposits	8,184		43,912
Unbilled revenue	9,003		1,615
Prepaid taxes	5,212		7,357
Vendor prepayments	767		1,863
Other	3,941		4,180
Total prepaid and other current assets	$	40,553	$	66,536