Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table details the weighted-average anti-dilutive securities for the periods presented:

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2016	2015	2016	2015
	(in thousands)
Weighted-average common shares excluded from diluted earnings per share due to their anti-dilutive effect:
Unvested RSUs and contingent PSUs	506	—	193	380

Schedule of calculation of basic and diluted earnings per share

The following table sets forth the calculations of basic and diluted earnings per share:

	For the Three Months Ended September 30,					For the Nine Months Ended September 30,
	2016			2015		2016			2015
	(in thousands, except per share amounts)
Net income (loss)	$	(40,907	)	$	3,114	$	(556,798	)	$	(107,452	)
Basic weighted-average common shares outstanding	78,468			67,961		71,574			67,638
Add: dilutive effect of unvested RSUs and contingent PSUs	—			158		—			—
Diluted weighted-average common shares outstanding	78,468			68,119		71,574			67,638
Basic net income (loss) per common share	$	(0.52	)	$	0.05	$	(7.78	)	$	(1.59	)
Diluted net income (loss) per common share	$	(0.52	)	$	0.05	$	(7.78	)	$	(1.59	)