| Cover | Jan. 25, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 25, 2023 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-39936 |
| Entity Registrant Name | DIAMONDHEAD HOLDINGS CORP. |
| Entity Central Index Key | 0001830188 |
| Entity Tax Identification Number | 85-3460766 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 250 Park Ave |
| Entity Address, Address Line Two | 7th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10177 |
| City Area Code | 212 |
| Local Phone Number | 572-6260 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of Class A common stock and one-fourth of one redeemable warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock, $0.0001 par value and one-fourth of one redeemable warrant |
| Trading Symbol | DHHCU |
| Security Exchange Name | NASDAQ |
| Common Class A [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | DHHC |
| Security Exchange Name | NASDAQ |
| Warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share |
| Trading Symbol | DHHCW |
| Security Exchange Name | NASDAQ |
