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Derivative Liabilities - Narrative (Details) - shares shares in Millions	Jun. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Earnout shares outstanding (in shares)	5	5
Public warrants
Derivative [Line Items]
Warrants outstanding (in shares)	12	12
Private placement warrants
Derivative [Line Items]
Warrants outstanding (in shares)	9	9

X

- Definition

Derivative Instrument, Contingent Consideration Liability, Earnout Shares, Outstanding

+ References

No definition available.

+ Details

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Namespace Prefix:	aur_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

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/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-5A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-18

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 20
-Name Accounting Standards Codification
-Section 25
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480682/815-20-25-6A

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Period Type: