Income Taxes - Schedule Of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 11,788	$ 8,212
Basis difference in the equity of AST LLC	79,396	62,717
Other	3,680	1,495
Total deferred tax assets	94,864	72,425
Valuation allowance	(94,864)	(72,425)
Net deferred tax assets	$ 0	$ 0