Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2012

Discontinued Operation, Additional Disclosures [Abstract]

Summary Of The Net Income (Loss) And Earnings (Loss) Per Common Share From Discontinued Operations

	2012		2011			2010
Revenue	$	—	$	—		$	48,563
Loss before income taxes	$	—	$	(407	)	$	(131,034	)
Net income (loss)	$	—	$	51,036		$	(113,124	)
Earnings (loss) per common share	$	—	$	0.22		$	(0.48	)