Income Taxes - Summary of components of deferred tax assets and deferred tax liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Intangible Assets	$ 66	$ 57
Share compensation	17,231	1,698
Other deductible timing differences	829	194
Deferred Tax Assets, Gross, Total	57,893	14,226
Valuation allowance	(49,442)	(14,174)
Total deferred tax assets, net	8,451	52
Deferred tax liabilities:
Other taxable timing differences	(17)	(51)
Unrealized foreign exchange	(3,326)	0
Outside basis differences in equity and other investments	(2)	(1)
Total deferred tax liabilities	(3,345)	(52)
Deferred Tax Assets, Net, Total	5,106	0
Germany
Deferred tax assets:
Deferred Tax Assets, Operating Loss Carryforwards	31,149	5,956
International
Deferred tax assets:
Deferred Tax Assets, Operating Loss Carryforwards	$ 8,618	$ 6,321