Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 47,044	$ 13,709
Cost of sales	109,621	30,669
Other operating costs	26,789	16,981
Loss from operations	(89,366)	(33,941)
Interest expense - Note 10	(43,458)	(64,846)
Fair value adjustment to Warrants - Note 19	(3,767)	0
Interest income	199	797
Loss before reorganization items and income taxes	(136,392)	(97,990)
Reorganization items	0	(905)
Loss before income taxes	(136,392)	(98,895)
Assets	232,626	134,637
Hycroft Mine
Segment Reporting Information [Line Items]
Revenues	47,044	13,709
Cost of sales	109,621	30,669
Other operating costs	5,705	10,909
Loss from operations	(68,282)	(27,869)
Interest expense - Note 10	(141)	(786)
Fair value adjustment to Warrants - Note 19	0	0
Interest income	199	797
Loss before reorganization items and income taxes	(68,224)	(27,858)
Reorganization items	0	0
Loss before income taxes	(68,224)	(27,858)
Assets	177,298	119,789
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	0	0
Cost of sales	0	0
Other operating costs	21,084	6,072
Loss from operations	(21,084)	(6,072)
Interest expense - Note 10	(43,317)	(64,060)
Fair value adjustment to Warrants - Note 19	(3,767)	0
Interest income	0	0
Loss before reorganization items and income taxes	(68,168)	(70,132)
Reorganization items	0	(905)
Loss before income taxes	(68,168)	(71,037)
Assets	$ 55,328	$ 14,848