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Consolidated Statements of Comprehensive Income / (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income/(loss)	$ 357,159	$ 159,842	$ 46,282
Other comprehensive income/(loss) - derivative instruments:
Unrealized holding gain/(loss)	(6,393)	(8,695)	(469)
(Gain)/loss reclassified into earnings from other comprehensive income/(loss)	2,262	4,834	6,851
Other comprehensive income/(loss), including portion attributable to noncontrolling interests	(4,131)	(3,861)	6,382
Comprehensive income/(loss)	353,028	155,981	52,664
Comprehensive (income)/loss attributable to noncontrolling interests	(16,468)	(5,375)	(1,720)
Comprehensive income/(loss) attributable to Entity	$ 336,560	$ 150,606	$ 50,944

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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