Discontinued Operations - Schedule of Assets and Liabilities of Discontinued Operations (Details) - Discontinued Operations - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets from discontinued operations:
Total assets from discontinued operations	$ 37	$ 10,977
Liabilities from discontinued operations:
Total liabilities from discontinued operations	191	9,391
Drivetrain
Assets from discontinued operations:
Total assets from discontinued operations	37	3,604
Liabilities from discontinued operations:
Total liabilities from discontinued operations	191	5,743
XL Grid
Assets from discontinued operations:
Total assets from discontinued operations	0	7,373
Liabilities from discontinued operations:
Total liabilities from discontinued operations	$ 0	$ 3,648