Grants Agreement, Payment Period

No definition available.

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- Definition

Grants, Potential Remaining Contributions

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Amount

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Area Under Lease

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Number Of Phases

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Tenant Improvement Allowance

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Term Of Contract, Period After Date Phase One Delivered

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Term Of Rent Abatement Per Phase, Following Rent Commencement Date

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Undiscounted Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	ai_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Litigation Settlement, Recommended Amount To Be Awarded From Other Party

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Litigation Settlement, Requested By Plaintiff, Amount To Be Awarded From Other Party

+ References

No definition available.

+ Details

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Namespace Prefix:	ai_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Long-Term Purchase Commitment, Incurred Cost

+ References

No definition available.

+ Details

Name:	ai_LongTermPurchaseCommitmentIncurredCost
Namespace Prefix:	ai_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

+ Details

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Data Type:	xbrli:durationItemType
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Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

No definition available.

+ Details

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Period Type:	duration

- Definition

Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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Data Type:	na
Balance Type:
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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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Commitments and Contingencies (Details)			1 Months Ended		3 Months Ended		6 Months Ended
Commitments and Contingencies (Details)	Aug. 25, 2021 USD ($) ft² phase	Aug. 10, 2021 USD ($)	Feb. 29, 2020	Nov. 30, 2019 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)	Apr. 30, 2021 USD ($)
Long-term Purchase Commitment [Line Items]
Purchase commitment, incurred cost					$ 3,400,000	$ 3,500,000	$ 6,600,000	$ 6,100,000
Lease not yet commenced, area under lease \| ft²	283,015
Lease not yet commenced, number of phases \| phase	2
Lease not yet commenced, total undiscounted base rent payments over term of lease	$ 103,100,000
Lease not yet commenced, term of rent abatement per phase, following rent commencement date	6 months
Lease not yet commenced, monthly base rent	$ 500,000
Lease not yet commenced, tenant improvement allowance	$ 44,200,000
Lease not yet commenced, term	126 months
Lease not yet commenced, period after date phase one delivered	9 months
Blattman et al. v. Siebel et al. \| Pending Litigation
Long-term Purchase Commitment [Line Items]
Recommended amount to be awarded from other party		$ 9,700,000
Requested by plaintiff, amount to be awarded from other party		$ 8,300,000
Landlord \| Letter of Credit \| Line of Credit
Long-term Purchase Commitment [Line Items]
Letter of credit outstanding	$ 12,600,000
Maximum
Long-term Purchase Commitment [Line Items]
Lease not yet commenced, monthly base rent	$ 1,000,000
C3.ai DTI Grants Program
Long-term Purchase Commitment [Line Items]
Grants, payment period			5 years
Grants, potential remaining contributions					$ 37,400,000		$ 37,400,000		$ 43,100,000
Web-Hosting Services, November 2019-November 2022
Long-term Purchase Commitment [Line Items]
Purchase commitment				$ 30,000,000
Purchase commitment, term				3 years
Web-Hosting Services, November 2020
Long-term Purchase Commitment [Line Items]
Purchase commitment				$ 10,000,000
Web-Hosting Services, November 2021
Long-term Purchase Commitment [Line Items]
Purchase commitment				10,000,000
Web-Hosting Services, November 2022
Long-term Purchase Commitment [Line Items]
Purchase commitment				$ 10,000,000