Basis of Consolidation and Presentation (Tables)

6 Months Ended

Jun. 30, 2015

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Calculation of Basic and Diluted Net Income (Loss) per Share

The following table presents information necessary to calculate net income (loss) per share for the three and six month periods ended June 30, 2015 and 2014 as well as potentially dilutive securities excluded from the weighted average number of diluted common shares outstanding because their inclusion would have been anti-dilutive (in thousands, except per share amounts):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
BASIC EPS:
Net income (loss)	$	(18,975	)	$	54,283		$	(9,850	)	$	89,105
Adjust for (income) loss attributed to holders of non-vested    restricted stock		198			(559	)		109			(910	)
Income (loss) attributed to common stockholders	$	(18,777	)	$	53,724		$	(9,741	)	$	88,195
Weighted average number of common shares outstanding,    excluding non-vested shares of restricted stock		145,300			143,622			145,142			143,259
Basic net income (loss) per common share	$	(0.13	)	$	0.37		$	(0.07	)	$	0.62
DILUTED EPS:
Income (loss) attributed to common stockholders	$	(18,777	)	$	53,724		$	(9,741	)	$	88,195
Weighted average number of common shares outstanding,    excluding non-vested shares of restricted stock		145,300			143,622			145,142			143,259
Add dilutive effect of potential common shares		684			2,407			570			2,327
Weighted average number of diluted common shares    outstanding		145,984			146,029			145,712			145,586
Diluted net income (loss) per common share	$	(0.13	)	$	0.37		$	(0.07	)	$	0.61
Potentially dilutive securities excluded as anti-dilutive		5,028			432			5,728			432