Computation of Basic and Diluted Earnings per Common Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Basic Share
Numerator:
Undistributed net loss from continuing operations	$ (12,015)	$ (9,269)
Less:
Basic undistributed net loss attributable to common shares	(12,015)	(9,269)
Denominator:
Basic weighted average shares outstanding	233,125	215,704
Income per share	$ (0.05)	$ (0.04)
Diluted Share
Numerator:
Undistributed net loss from continuing operations	(12,015)	(9,269)
Less:
Basic undistributed net loss attributable to common shares	(12,015)	(9,269)
Denominator:
Basic weighted average shares outstanding	233,125	215,704
Effect of dilutive stock options and warrants	0	0
Diluted weighted average shares outstanding	233,125	215,704
Income per share	$ (0.05)	$ (0.04)
Warrants \| Basic Share
Less:
Participation rights of the Company Warrants in undistributed earnings	0	0
Warrants \| Diluted Share
Less:
Participation rights of the Company Warrants in undistributed earnings	0	0
Restricted Stock \| Basic Share
Less:
Participation rights of unvested restricted stock in undistributed earnings, Basic	0	0
Restricted Stock \| Diluted Share
Less:
Participation rights of unvested restricted stock in undistributed earnings, Diluted	$ 0	$ 0

Undistributed earnings allocated to warrants.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (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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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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The earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed.

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Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.

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Amount of undistributed earnings (loss) allocated to participating securities for the diluted earnings (loss) per share or per unit calculation under the two-class method.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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