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INCOME (LOSS) PER SHARE - Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator
Income (loss) from continuing operations	$ (2,795)	$ (20,869)
Less: Net income (loss) attributable to noncontrolling interests	4,093	4,032
Net income (loss) attributable to common stockholders - continuing operations	(6,888)	(24,901)
Income (loss) from discontinued operations, net of tax	0	487	[1]
Net income (loss) attributable to common stockholders	$ (6,888)	$ (24,414)
Basic And Diluted Net Income (Loss) Per Share, Denominator [Abstract]
Weighted-average common shares outstanding (in shares)	561,735,937	562,195,243
Continuing operations (in usd per share)	$ (0.01)	$ (0.04)
Discontinued operations (in usd per share)	0.00	0.00
Basic and diluted net income (loss) per share (in usd per share)	$ (0.01)	$ (0.04)
[1] (1)The income (loss) from discontinued operations before loss on dispositions and provision for income taxes for the three months ended March 31, 2017 includes the results of each business through its respective disposition date.

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Basic And Diluted Net Income (Loss) Per Share, Denominator [Abstract]

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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 after tax of income (loss) from continuing operations attributable to the parent.

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Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.

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The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Per basic and 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, when the per share amount is the same.

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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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