Earnings per Share - Computation of Earnings per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net loss from continuing operations	$ (11,483)	$ (74,927)
Income from discontinued operations, net of income taxes	42,422	7,415
Net income (loss)	30,939us-gaap_ProfitLoss	(67,512)us-gaap_ProfitLoss
Less income attributable to noncontrolling interests	0	17
Net income (loss) available to common shareholders	$ 30,939	$ (67,529)
Denominator:
Weighted average common shares outstanding - basic	90,926,111	90,776,211
Weighted average common shares outstanding - diluted	90,926,111	90,776,211
Basic earnings per share:
Net loss from continuing operations	$ (0.13)	$ (0.82)
Income from discontinued operations	$ 0.47	$ 0.08
Net income (loss)	$ 0.34	$ (0.74)
Less income attributable to noncontrolling interests	$ 0.00	$ 0.00
Net income (loss) available to common shareholders	$ 0.34us-gaap_EarningsPerShareBasic	$ (0.74)us-gaap_EarningsPerShareBasic
Diluted earnings per share:
Net loss from continuing operations	$ (0.13)	$ (0.82)
Income from discontinued operations	$ 0.47	$ 0.08
Net income (loss)	$ 0.34	$ (0.74)
Less income attributable to noncontrolling interests	$ 0.00	$ 0.00
Net income (loss) available to common shareholders	$ 0.34us-gaap_EarningsPerShareDiluted	$ (0.74)us-gaap_EarningsPerShareDiluted
Stock Options [Member]
Denominator:
Incremental shares related to share-based compensation	0	0
Nonvested Shares [Member]
Denominator:
Incremental shares related to share-based compensation	0	0

Earnings Per Share, Basic, Including Portion Attibutable to Noncontrolling Interest

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Earnings Per Share, Diluted, Including Portion Attibutable to Noncontrolling Interest

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Income (Loss) Attributable to Noncontrolling Interests

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

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.

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Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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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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