v3.23.1

Private Placement Warrants - Additional Information (Detail) - Private Placement Warrants - USD ($)			3 Months Ended
	Nov. 05, 2021	Oct. 29, 2021	Mar. 31, 2023
Class A Common Stock \| Private Placement
Class of warrant or right, number of securities called by each warrant or right		1
Class of warrant or right, exercise price of warrants or rights		$ 11.5
Sponsor
Lock up period			30 days
Sponsor \| Private Placement
Class of warrant or right, Warrants issued	110,000	2,100,667
Class of warrant or right, Warrants issued, Price per warrant	$ 1.5	$ 1.5
Proceeds from issuance of warrants	$ 165,000	$ 3,151,000

Class of warrant or right warrants issued.

+ References

No definition available.

+ Details

Name:	ohaa_ClassOfWarrantOrRightWarrantsIssued
Namespace Prefix:	ohaa_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Class of warrant or right warrants issued price per warrant.

+ References

No definition available.

+ Details

Name:	ohaa_ClassOfWarrantOrRightWarrantsIssuedPricePerWarrant
Namespace Prefix:	ohaa_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Lock up period.

+ References

No definition available.

+ Details

Name:	ohaa_LockUpPeriod
Namespace Prefix:	ohaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

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

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfWarrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=ohaa_PrivatePlacementWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ohaa_SponsorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Opy Acquisition Corp. I 10-Q