(Loss) Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Schedule of (Loss) Earnings per Share

(Loss) earnings per share is computed as follows (in thousands, except per share data):

	Year Ended December 31,
	2017								2016								2015
	Net Loss			Shares		Per Share Amount			Net Loss			Shares		Per Share Amount			Net Income		Shares		Per Share Amount
Basic (loss) earnings per share	$	(202,386	)		85,811	$	(2.36	)	$	(12,531	)		84,925	$	(0.15	)	$	49,133		85,860	$	0.57
Effect of dilutive    incentive-based awards					—								—							121
Diluted (loss) earnings per share	$	(202,386	)		85,811	$	(2.36	)	$	(12,531	)		84,925	$	(0.15	)	$	49,133		85,981	$	0.57