Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of anti-dilutive 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,
	2020	2019	2020	2019
	(in thousands)
Anti-dilutive	158	—	450	707

Schedule of calculations of basic and diluted net income (loss) per common share [Table Text Block]

The following table sets forth the calculations of basic and diluted net income (loss) per common share:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2020		2019		2020		2019
	(in thousands, except per share data)
Net income (loss)	$	(98,292)	$	42,234	$	(599,439)	$	(84,946)
Basic weighted-average common shares outstanding	114,371		112,804		113,462		112,441
Dilutive effect of non-vested RSUs and contingent PSUs	—		530		—		—
Diluted weighted-average common shares outstanding	114,371		113,334		113,462		112,441
Basic net income (loss) per common share	$	(0.86)	$	0.37	$	(5.28)	$	(0.76)
Diluted net income (loss) per common share	$	(0.86)	$	0.37	$	(5.28)	$	(0.76)