Basis of Presentation and Principles of Consolidation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Accounts payable	$ (26,011)		$ (14,722)		$ (97,006)		$ (70,180)
Net cash flows from operating activities	49,627	[1]	60,943	[1]	207,047	[1]	147,121	[1]
Purchases of property and equipment	(19,295)		(39,102)		(72,311)		(123,346)
Net cash flows from investing activities	(33,253)	[1]	(287,082)	[1]	(94,976)	[1]	(382,399)	[1]
Purchases of property and equipment included in ending accounts payable	5,869		8,188		5,869		8,188
As Reported [Member]
Accounts payable			(13,938)				(84,910)
Net cash flows from operating activities			61,727				132,391
Purchases of property and equipment			(39,886)				(108,616)
Net cash flows from investing activities			(287,866)				(367,669)
Purchases of property and equipment included in ending accounts payable			24,773				24,773
Adjustment [Member]
Accounts payable			(784)				14,730
Net cash flows from operating activities			(784)				14,730
Purchases of property and equipment			784				(14,730)
Net cash flows from investing activities			784				(14,730)
Purchases of property and equipment included in ending accounts payable			$ (16,585)				$ (16,585)

[1] During 2013, we discontinued four ventures previously included in our New Ventures operating segment, Orango, Rubi, Crisp Market, and Star Studio. Cash flows from these discontinued operations are not segregated from cash flows from continuing operations in all periods presented because they were not material.