Stockholders' Equity (Deficit) (Tables)

12 Months Ended

Dec. 31, 2013

Diluted Earnings per Share

Diluted earnings per share for years ended December 31, 2013, 2012 and 2011 includes the effects of potential common shares consisting of common stock issuable upon exercise of outstanding stock options when dilutive (in thousands, except per share amounts):

	2013			2012		2011
Net income (loss) attributable to common stockholders — basic and diluted	$	(12,445	)	$	50,077	$	18,605
Weighted average number of common shares outstanding		28,584			28,230		27,848
Dilutive effect of outstanding stock options and restricted stock grants after application of the treasury stock method		—			198		342
Dilutive shares outstanding		28,584			28,428		28,190
Basic earnings (loss) per share attributable to common stockholders	$	(0.44	)	$	1.77	$	0.67
Diluted earnings (loss) per share attributable to common stockholders	$	(0.44	)	$	1.76	$	0.66