Subsequent Events (Tables)

9 Months Ended

Dec. 31, 2011

Subsequent Events [Abstract]

Schedule of Operating Results of Acquiree

The statement of operations information below includes the statement of operations of Summit for the nine months ended September 30, 2011 and 2010 combined with the Company's statement of operations for the nine months ended December 31, 2011 and 2010.

	Nine Months Ended			Nine Months Ended
	December 31, 2011			December 31, 2010
	(Amounts in thousands, except per share amounts)
Revenues	$	1,273,655		$	2,011,114
Operating income	$	41,975		$	202,544
Net income (loss)	$	(27,558	)	$	83,266
Basic Net Income (Loss) Per Common Share	$	(0.20	)	$	0.62
Diluted Net Income (Loss) Per Common Share	$	(0.20	)	$	0.61
Weighted average number of common shares outstanding - Basic	138,227			135,176
Weighted average number of common shares outstanding - Diluted	138,227			148,396