Goodwill and Intangible Assets - Goodwill Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance		$ 705	$ 31,654	$ 705
Measurement period adjustments		186	(12,848)
Effect of change in foreign currency exchange rates		(1)	(12)
Impairment loss	$ (5,600)	(101,470)	(18,089)	0
Acquisitions		117,445		30,949
Disposal of Grapevine		(704)
Ending balance		16,161	705	31,654
Impairment loss of intangible assets		71,070	33,230	73,669
Adjustments
Goodwill [Roll Forward]
Beginning balance		(460)
Impairment loss			(8,766)
Ending balance			(460)
Timios Reporting Unit
Goodwill [Roll Forward]
Amount of fair value in excess of carrying amount	19,500
Timios Reporting Unit | Trade name
Goodwill [Roll Forward]
Impairment loss	(700)
Timios Reporting Unit | Lender relationships
Goodwill [Roll Forward]
Impairment loss	$ (13,200)
DBOT
Goodwill [Roll Forward]
Impairment loss of intangible assets		9,300
Tree Technologies | Adjustments
Goodwill [Roll Forward]
Beginning balance			$ 8,300
Ending balance				$ 8,300
WAVE
Goodwill [Roll Forward]
Impairment loss		(35,700)
US Hybrid
Goodwill [Roll Forward]
Impairment loss		(42,200)
Solectrac
Goodwill [Roll Forward]
Impairment loss		$ (17,700)