Equity Method Investments (Schedule of Income (Loss) From Equity Method Investments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]
Gain on previously held equity interest on ecoATM	$ 0	$ 0	$ 68,376
Proportionate share of net loss of equity method investees:	(800)	(26,323)	(45,973)
Amortization of difference in carrying amount and underlying equity in Joint Venture	0	(2,411)	(2,475)
Total income (loss) from equity method investments	(800)	(28,734)	19,928
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Schedule of Equity Method Investments [Line Items]
Proportionate share of net loss of equity method investees:	0	(25,793)	(42,660)
Pursuant Health and ecoATM
Schedule of Equity Method Investments [Line Items]
Proportionate share of net loss of equity method investees:	$ (800)	$ (530)	$ (3,313)