Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Summary of the unaudited quarterly results of operations

The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2017 and 2016:

	Quarter Ended
	March 31			June 30			Sept. 30			Dec. 31
	(In thousands)
2017
Revenue	$	20,595		$	23,700		$	24,013		$	21,942
Operating income (loss)	(7,324		)	(3,307		)	1,219			1,793
Net loss	(13,379		)	(9,636		)	(6,344		)	(2,122		)
	Quarter Ended
	March 31			June 30			Sept. 30			Dec. 31
	(In thousands)
2016
Revenue	$	11,950		$	24,340		$	23,255		$	35,001
Operating income (loss)	(9,132		)	(5,144		)	(1,086		)	10,635
Net income (loss)	(13,864		)	(9,235		)	(5,443		)	4,118