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Earnings (Loss) Per Share, Calculation of EPS (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended						4 Months Ended		12 Months Ended
	Sep. 07, 2012	Jun. 15, 2012	Mar. 23, 2012	Sep. 09, 2011	Jun. 17, 2011	Mar. 25, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Numerator:
Net loss from continuing operations	$ (30,690)	$ 8,483	$ (10,108)	$ (768)	$ (898)	$ (10,750)	$ 16,289	$ 4,417	$ (16,026)	$ (7,999)	$ (10,799)
(Loss) income from discontinued operations, net of income taxes	(14,089)	461	12,723	(247)	342	(294)	339	520	(566)	321	1,627
Net loss	$ (44,779)	$ 8,944	$ 2,615	$ (1,015)	$ (556)	$ (11,044)	$ 16,628	$ 4,937	$ (16,592)	$ (7,678)	$ (9,172)
Weighted-average number of common shares outstanding—basic and diluted									180,826,124	166,667,459	144,463,587
Basic and diluted (loss) earnings per share:
Continuing operations (in dollars per share)	$ (0.16)	$ 0.05	$ (0.06)	$ (0.01)	$ 0.00	$ (0.07)	$ 0.09	$ 0.03	$ (0.09)	$ (0.05)	$ (0.07)
Discontinued operations (in dollars per share)	$ (0.08)	$ 0.00	$ 0.08	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.01
Basic and diluted (loss) earnings per share (in dollars per share)	$ (0.24)	$ 0.05	$ 0.02	$ (0.01)	$ 0.00	$ (0.07)	$ 0.09	$ 0.03	$ (0.09)	$ (0.05)	$ (0.06)

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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