XML 80 R68.htm IDEA: XBRL DOCUMENT v3.25.3

Privately-Held Securities - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Privately Held Securities [Line Items]
Other noncurrent assets	$ 39,189,000	$ 39,189,000	$ 4,437,000
Subscription Agreement [Member]
Privately Held Securities [Line Items]
Other noncurrent assets	28,000,000	28,000,000
Impairments of privately held securities		0
Commercial Contract [Member]
Privately Held Securities [Line Items]
Revenue recognized from commercial contract	$ 900,000	$ 900,000

X

- Definition

Impairments of privately held securities.

+ References

No definition available.

+ Details

Name:	ionq_ImpairmentsOfPrivatelyHeldSecurities
Namespace Prefix:	ionq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Privately held securities.

+ References

No definition available.

+ Details

Name:	ionq_PrivatelyHeldSecuritiesLineItems
Namespace Prefix:	ionq_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

+ Details

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

X

- Definition

Amount of noncurrent assets classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_OtherAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=ionq_SubscriptionAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=ionq_CommercialContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: