Earnings (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Earnings Per Share Basic and Diluted

	Year Ended December 31,
	2012			2011		2010
Numerator — basic and diluted
Net income (loss)	$	(36,986	)	$	103,903	$	65,984
Denominator
Weighted average number of common shares outstanding — basic		40,316			41,131		45,557
Effect of dilutive stock options		—			915		915
Effect of dilutive convertible notes		—			836		863
Effect of dilutive restricted shares		—			591		329
Weighted average number of common shares outstanding — diluted		40,316			43,473		47,664
Earnings (loss) per common share — basic	$	(0.92	)	$	2.53	$	1.45
Earnings (loss) per common share — diluted	$	(0.92	)	$	2.39	$	1.38
Antidilutive stock options and restricted shares		4,943			2,119		1,606