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Earnings Per Share - Earnings Allocable to Common Shares (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator for basic and diluted earnings per share:
Net loss allocable to common shareholders, basic	$ (21,450)	$ (17,565)
Net loss allocable to common shareholders, diluted	$ (21,450)	$ (17,565)
Denominator for basic and diluted earnings per share:
Weighted average common shares outstanding for basic and diluted earnings per common share (in shares)	77,444	67,747
Basic and diluted earnings per common share:
Net loss allocable to common shareholders (in dollars per share)	$ (0.28)	$ (0.26)

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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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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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