Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Summary of Computation of Earnings Per Share

The following table provides a summary of net income and the number of common shares used in the computation of basic and diluted income per common share, which includes the weighted average number of common shares outstanding and the effect of dilutive potential common shares, if any.

	For the Three Months Ended						For the Six Months Ended
	June 30,						June 30,
(Amounts in thousands, except per share amounts)	2018			2017			2018			2017
Numerator:
Net (loss) income attributable to common stockholders	$	(34,816	)	$	103,016		$	(33,702	)	$	103,388
Earnings allocated to unvested participating securities		(18	)		(59	)		(36	)		(73	)
Numerator for (loss) income per common share - basic    and diluted	$	(34,834	)	$	102,957		$	(33,738	)	$	103,315
Denominator:
Denominator for basic (loss) income per common share -    weighted average shares		240,336			234,990			240,324			232,969
Effect of dilutive stock-based compensation plans (1)		-			20			-			27
Denominator for diluted (loss) income per common    share - weighted average shares		240,336			235,010			240,324			232,996
(Loss) income per common share - basic and diluted	$	(0.14	)	$	0.44		$	(0.14	)	$	0.44

⁽¹⁾ The effect of dilutive securities for the three months ended June 30, 2018 and 2017 excludes 27,846 and 32,317 weighted average share equivalents, respectively, and 27,730 and 34,147 weighted average share equivalents for the six months ended June 30, 2018 and 2017, respectively, as their effect was anti-dilutive.