Stockholders’ Equity (Deficit) (Details)					1 Months Ended			3 Months Ended	12 Months Ended
	May 15, 2023 USD ($) shares	May 09, 2023 USD ($) shares	May 08, 2023 USD ($) shares	Feb. 28, 2023 USD ($)	Nov. 30, 2023 shares	Dec. 31, 2021 USD ($) shares	Nov. 30, 2021 shares	Mar. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) classOfStock vote $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) shares	Dec. 21, 2021	Jul. 01, 2021
Class of Stock [Line Items]
Number of classes of stock | classOfStock									2
Treasury stock, at cost (in shares)									21,863,450	21,863,450
Issuance of Class A common stock upon exercise of stock options and vesting of restricted stock units | $									$ 3,056,000	$ 3,945,000	$ 6,176,000
Proceeds from exercise of warrants | $									$ 0	0	153,927,000
Vendor payments in shares in lieu of cash (in shares)									15,281,701
Vendor payments under the stock-in-lieu of cash program | $									$ 12,000,000
Compensation cost | $									207,132,000	162,405,000	77,684,000
Research and development
Class of Stock [Line Items]
Compensation cost | $									65,840,000	40,898,000	20,216,000
Daimler North America Corporation
Class of Stock [Line Items]
Remaining shares issued in period (in shares)					375,000
Prepaid expenses and other current assets | $									$ 7,200,000
Daimler North America Corporation | Research and development
Class of Stock [Line Items]
Compensation cost | $										$ 7,900,000
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 exercised (in shares)								3,589,645	0	1,408,752
Issuance of Class A common stock upon exercise of Public and Private Warrants (in shares)										405,752
Warrants outstanding (in shares)										1,668,269
Share per warrant (in shares)										1
Stock price of warrants (in dollars per share) | $ / shares										$ 11.50
Public Warrants
Class of Stock [Line Items]
Warrants exercised (in shares)								13,128,671
Remaining warrants redeemed (in shares)								204,638
Redemption price per warrant (in dollars per share) | $ / shares								$ 0.01
Private and Public Warrants
Class of Stock [Line Items]
Proceeds from exercise of warrants | $								$ 153,900,000
Equity Financing Program
Class of Stock [Line Items]
Stock issuance sales agreement, authorized offering amount | $				$ 75,000,000
Issuance of Class A common stock upon exercise of stock options and vesting of restricted stock units | $									$ 50,190,000
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)									715,000,000	715,000,000
Common stock, par value (in dollars per share) | $ / shares									$ 0.0001	$ 0.0001
Common stock, shares issued (in shares)									344,606,104	291,942,087
Common stock, shares outstanding (in shares)									322,742,654	270,078,637
Common stock, votes per share | vote									1
Shares converted (in shares)						15,000,000
Shares repurchased | $						$ 312,500,000					$ 312,500,000
Treasury stock, at cost (in shares)						15,263,761					15,263,761
Purchase transaction | $										$ 76,600,000	$ 235,900,000
Repurchase of Class A shares (in shares)										6,599,689
Sale of stock, consideration transferred, number of shares issued (in shares)	1,652,892		1,652,892
Sale of stock, gross proceeds | $	$ 10,000,000		$ 10,000,000
Granted (in shares)		1,652,892
Option to purchase additional shares granted amount | $		$ 10,000,000
Class A Common Stock | Daimler North America Corporation
Class of Stock [Line Items]
Shares issued for services (in shares)							1,500,000
Award vesting period (in years and in months)							2 years
Shares issued in period (in shares)										1,125,000
Class A Common Stock | Equity Financing Program
Class of Stock [Line Items]
Sale of stock (in shares)									9,467,996
Issuance of Class A common stock upon exercise of stock options and vesting of restricted stock units | $									$ 50,200,000
Common stock, capital shares reserved for future issuance, amount | $									$ 24,300,000
Class B Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)									121,000,000	121,000,000
Common stock, par value (in dollars per share) | $ / shares									$ 0.0001	$ 0.0001
Common stock, shares issued (in shares)									97,088,670	97,088,670
Common stock, shares outstanding (in shares)									97,088,670	97,088,670
Common stock, votes per share | vote									10
Shares issued upon conversion (in shares)						15,000,000
Common Stock
Class of Stock [Line Items]
Conversion ratio												1	1