Quarterly Financial Data (unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 65,952		$ 66,807		$ 67,645		$ 67,550		$ 66,420		$ 67,710		$ 67,177		$ 65,906		$ 267,954	[1]	$ 267,213	[1]	$ 266,220	[1]
Loss from operations	(102,463)		(61,358)		(62,135)		(47,612)		(79,379)		(45,876)		(136,278)		(67,454)		(273,568)		(328,986)		(75,832)
Net loss	(184,022)		(104,800)		(280,710)		(122,345)		(147,747)		(122,483)		(163,904)		(124,629)		(691,877)		(558,763)		(345,641)
Net loss attributable to common stockholders	$ (158,613)		$ (89,581)		$ (201,928)		$ (97,810)		$ (135,229)		$ (100,824)		$ (154,764)		$ (117,105)		$ (547,932)		$ (507,922)		$ (332,780)
Net loss per share attributable to common stockholders—basic and diluted	$ (0.70)	[2]	$ (0.40)	[2]	$ (0.90)	[2]	$ (0.44)	[2]	$ (0.61)	[2]	$ (0.46)	[2]	$ (0.71)	[2]	$ (0.54)	[2]	$ (2.44)		$ (2.32)		$ (1.83)

[1] Substantially all of the LNG terminal revenues relate to regasification capacity reservation fee payments made by Total Gas & Power North America, Inc. and Chevron U.S.A. Inc. LNG and natural gas marketing and trading revenue consists primarily of the domestic marketing of natural gas imported into the Sabine Pass LNG terminal.

[2] The sum of the quarterly net loss per share—basic and diluted may not equal the full year amount as the computations of the weighted average common shares outstanding for basic and diluted shares outstanding for each quarter and the full year are performed independently.