Other Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Receivables
Other receivables	$ 84,898	$ 15,544
Loans to customers to finance vehicle purchases
Other Receivables
Other receivables	653	276
Accrued customer billings
Other Receivables
Other receivables	6,124	6,261
Fuel tax credits
Other Receivables
Other receivables	69,585	434
Other
Other Receivables
Other receivables	$ 8,536	$ 8,573