UNAUDITED SUPPLEMENTARY QUARTERLY INFORMATION (Tables)

12 Months Ended

Dec. 31, 2017

UNAUDITED SUPPLEMENTARY QUARTERLY INFORMATION

Summary of unaudited supplementary quarterly information

	Three months ended
	March 31, 2017		June 30, 2017		September 30, 2017		December 31, 2017
	(unaudited) (in thousands, except per share)
Net (loss)	$	(3,018)	$	(1,712)	$	(8,072)	$	2,169
Net (loss) per share:
Basic	$	(0.01)	$	(0.01)	$	(0.03)	$	0.01
Diluted	$	(0.01)	$	(0.01)	$	(0.03)	$	0.01
Weighted average shares outstanding:
Basic		299,575		308,523		314,077		313,887
Diluted		299,575		308,523		314,077		313,887

	Three months ended
	March 31, 2016		June 30, 2016		September 30, 2016		December 31, 2016
	(unaudited) (in thousands, except per share)
Net income (loss)	$	12,985	$	8,353	$	4,208	$	(4,491)
Net income (loss) per share:
Basic	$	0.04	$	0.03	$	0.01	$	(0.01)
Diluted	$	0.04	$	0.03	$	0.01	$	(0.01)
Weighted average shares outstanding:
Basic		298,242		298,237		298,510		299,518
Diluted		298,554		299,791		301,045		301,102

	Three months ended
	March 31, 2015		June 30, 2015		September 30, 2015		December 31, 2015
	(unaudited) (in thousands, except per share)
Net (loss) income	$	6,021	$	(14,116)	$	2,633	$	(14,988)
Net (loss) income per share:
Basic	$	0.02	$	(0.05)	$	0.01	$	(0.05)
Diluted		0.02		(0.05)		0.01		(0.05)
Weighted average shares outstanding:
Basic		297,255		300,530		300,530		300,107
Diluted		297,266		300,530		300,530		300,107