Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 0	$ 0
Operating Expenses
General and administrative expenses	49,093	16,803
Development expense, net	4,101	1,615
Lease expense	1,119	905
Depreciation expense	162	184
Total operating expenses	54,475	19,507
Total operating loss	(54,475)	(19,507)
Other income (expense)
Loss on Common Stock Warrant liabilities	(5,747)	(2,533)
Other, net	151	1
Total other expense	(5,596)	(2,532)
Net loss attributable to NextDecade Corporation	(60,071)	(22,039)
Preferred stock dividends	(24,282)	(18,294)
Deemed dividends on Series A Convertible Preferred Stock	0	(63)
Net loss attributable to common stockholders	$ (84,353)	$ (40,396)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.65)	$ (0.34)
Weighted average shares outstanding - basic and diluted (in shares)	130,136	119,201