Class Of Warrant Or Rights Issued During Period

No definition available.

Name:	dhcau_ClassOfWarrantOrRightsIssuedDuringPeriod
Namespace Prefix:	dhcau_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Class Of Warrant Or Rights Issued During Period Price Per Warrant Or Right

+ References

No definition available.

+ Details

Name:	dhcau_ClassOfWarrantOrRightsIssuedDuringPeriodPricePerWarrantOrRight
Namespace Prefix:	dhcau_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Class of warrants or rights subscribed but not issued.

+ References

No definition available.

+ Details

Name:	dhcau_ClassOfWarrantsOrRightsSubscribedButNotIssued
Namespace Prefix:	dhcau_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Class of warrants or rights subscribed but not issued value.

+ References

No definition available.

+ Details

Name:	dhcau_ClassOfWarrantsOrRightsSubscribedButNotIssuedValueData
Namespace Prefix:	dhcau_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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 provided by derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 23
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3505-108585

+ Details

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

- 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_ClassOfWarrantOrRightAxis=dhcau_PrivatePlacementWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

Private Placement - Additional Information (Detail) - USD ($)		6 Months Ended		12 Months Ended
	Mar. 05, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Proceeds from issuance of warrants		$ 0	$ 9,189,015
Private Placement Warrants [Member]
Class of warrants or rights, number of securities called by each warrant or rights		1
Class of warrants or rights, exercise price		$ 11.5
IPO [Member]
Proceeds from issuance of warrants				$ 10,211,874
IPO [Member] \| Sponsor [Member] \| Private Placement Warrants [Member]
Class of warrant or rights issued during period		6,000,000
Class of warrant or rights issued during period, price per warrant or right		$ 1.5
Proceeds from issuance of warrants		$ 9,000,000
Over-Allotment Option [Member] \| Sponsor [Member] \| Private Placement Warrants [Member]
Class of warrant or rights issued during period	126,010
Class of warrants or rights subscribed but not issued		600,000
Class of warrants or rights subscribed but not issued value		$ 900,000
Proceeds from derivative instrument, financing activities	$ 189,015