Stockholders' Equity - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 28, 2023 USD ($)	Mar. 31, 2023 USD ($) vote $ / shares shares	Mar. 31, 2022 USD ($)	Dec. 31, 2022 shares
Class of Stock [Line Items]
Sale of stock, gross proceeds | $		$ 1,039	$ 1,085
Vendor payments in shares in lieu of cash (in shares)		1,627,690
Vendor payments in stock in lieu of cash, liability | $		$ 11,600
Pony. AI, Inc
Class of Stock [Line Items]
Vendor payments in shares in lieu of cash (in shares)		1,564,822
Private Warrants
Class of Stock [Line Items]
Warrants outstanding (in shares)				1,668,269
Warrants exercised (in shares)		0
Share per warrant (in shares)		1
Stock price of warrants (in dollars per share) | $ / shares		$ 11.50
Equity Financing Program
Class of Stock [Line Items]
Stock issuance sales agreement, authorized offering amount | $	$ 75,000
Sale of stock, gross proceeds | $		$ 22,665
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		715,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001
Common stock, shares issued (in shares)		301,045,203
Common stock, shares outstanding (in shares)		279,181,753
Common stock, votes per share | vote		1
Class A Common Stock | Equity Financing Program
Class of Stock [Line Items]
Sale of stock (in shares)		2,759,689
Sale of stock, gross proceeds | $		$ 22,700
Common stock available for future issuance | $		$ 52,100
Class B Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		121,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001
Common stock, shares issued (in shares)		97,088,670
Common stock, shares outstanding (in shares)		97,088,670
Common stock, votes per share | vote		10