Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Accounting Policies [Abstract]

Prepaid Expenses and Other

	Year Ended December 31,
(in thousands)	2011	2010
Prepaid expenses	5,275	9,590
Inventory	11,526	4,443
Total prepaid expenses and other	16,801	14,033

Schedule of Accrued Liabilities

	Year Ended December 31,
(in thousands)	2011		2010
Property taxes	$	10,430	$	11,245
Accrued interest	9,205		10,074
Accrued payroll	9,953		10,225
Other accrued liabilities	5,478		4,690
Total accrued liabilities	$	35,066	$	36,234

Computation of Basic and Diluted Earnings (Loss) Per Share

	Year Ended December 31,
	2011			2010		2009
	(in thousands, except per share amounts)
Net (loss) earnings from continuing operations	$	(228,063	)	$	82,524	$	47,224
Less: earnings allocable to participating securities	—			1,199		1,134
Net earnings from continuing operations available for common shareholders	$	(228,063	)	$	81,325	$	46,090
Net earnings from discontinued operations	$	—		$	—	$	6,806
Less: earnings allocable to participating securities	—			—		174
Net earnings from discontinued operations available for common shareholders	$	—		$	—	$	6,632
Basic (loss) earnings per share from continuing operations	$	(4.21	)	$	1.54	$	1.03
Basic earnings per share from discontinued operations	—			—		0.15
Basic (loss) earnings per share	$	(4.21	)	$	1.54	$	1.18
Dilutive (loss) earnings per share from continuing operations	$	(4.21	)	$	1.52	$	1.02
Dilutive earnings per share from discontinued operations	—			—		0.15
Dilutive (loss) earnings per share	$	(4.21	)	$	1.52	$	1.17
Basic weighted average shares	54,133			52,969		44,625
Add: dilutive effects of stock options	—			460		221
Diluted weighted average shares	54,133			53,429		44,846

Components of Other Comprehensive Earnings (Loss)

	Year Ended December 31,
(in thousands)	2011			2010		2009
Net (loss) earnings	$	(228,063	)	$	82,524	$	54,030
Unrealized gain (loss) on derivatives, net of income taxes of $0, $0, and ($79,240), respectively	—			—		(129,287		)
Reclassification of realized (gain) loss on derivatives included in net earnings, net of income taxes of $0, $0, ($27,447)	—			—		(44,782		)
Amortization of Accumulated other comprehensive loss related to de-designated hedges, net of income taxes of $23,467, $10,153, and $0, respectively	38,289			16,566		—
Comprehensive (loss) earnings	$	(189,774	)	$	99,090	$	(120,039	)