Earnings Per Share - Basic (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Basic earnings per share
Net loss	$ (33,035)	$ (10,277)
Less: cumulative preferred stock dividends	4,832	0
Numerator	$ (37,867)	$ (10,277)
Weighted average common stock outstanding	78,198	65,692
Basic earnings (loss) per share, Net	$ (0.48)	$ (0.16)

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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- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders.

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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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This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).

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