For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://www.xbrl.org/2003/role/exampleRef
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Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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Reference 8: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
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+ Details

Revenues (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Revenues (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Performance obligation	$ 26.2		$ 26.2
Customer liability	$ 1.9		$ 1.9		$ 0.7
Revenue Benchmark \| Customer Concentration Risk \| U.S. DaaS Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	56.00%	49.00%	65.00%	21.00%
Revenue Benchmark \| Customer Concentration Risk \| U.S. Ground Autonomy Solutions Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	34.00%	0.00%	23.00%	51.00%
Revenue Benchmark \| Customer Concentration Risk \| U.S. Freight Delivery Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	10.00%	51.00%	12.00%	28.00%