Basis of Presentation and Significant Accounting Policies - Summary of Interest Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounting Policies [Abstract]
Interest incurred	$ 76,221	$ 65,560	$ 31,875
Less: Interest capitalized	(76,221)	(65,560)	(29,273)
Interest expense, net of amounts capitalized	0	0	2,602
Cash paid for interest	$ 72,254	$ 46,779	$ 29,769