Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Assets Acquisitions Narrative (Details)

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Acquisitions - Assets Acquisitions Narrative (Details) - Transportation Technology Entity
$ in Millions
Apr. 06, 2021
USD ($)
shares
Asset Acquisition, Consideration Transferred [Abstract]  
Asset acquisition, consideration transferred $ 5.0
In Process Research and Development  
Asset Acquisition, Consideration Transferred [Abstract]  
Asset acquisition, consideration transferred 5.0
Acquired Current Liabilities  
Asset Acquisition, Consideration Transferred [Abstract]  
Asset acquisition, consideration transferred 0.1
Acquired Current Assets  
Asset Acquisition, Consideration Transferred [Abstract]  
Asset acquisition, consideration transferred $ 0.1
Redeemable convertible preferred stock  
Business Combination, Separately recognized Transactions, Additional Disclosures [Abstract]  
Stock issued during period, shares, restricted stock award, gross | shares 2,677,200
Stock issued during period, value, restricted stock award, gross $ 23.9
Preferred Stock, Convertible, Conversion Ratio 1