Commitment and Contingencies - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2022	May 31, 2022
Other Commitments [Line Items]
Purchase obligations		$ 62.3
P3 USA, Inc.
Other Commitments [Line Items]
Purchase commitment		$ 30.0
Class A Common Stock | ECARX Holdings Inc. | Chairman and Chief Executive Officer
Other Commitments [Line Items]
Purchase of ordinary shares (in shares)			1,500,000
Share price (in dollars per share)			$ 10.00
Aggregate Amount			$ 15.0
Class A Common Stock | P3 USA, Inc.
Other Commitments [Line Items]
Shares issued for services (in shares)	291,940