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Other Investments (Schedule of Summarized Investee Financial Information) (Details) - Marina Palms - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Equity Method Investments, Summarized Financial Information [Line Items]
Revenues	$ 37,668	$ 129,697
Expenses	(24,209)	(72,736)
Net Income Attributable to Parent Entities	$ 13,459	$ 56,961

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