XML 11 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2021
Jun. 03, 2021
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2021  
Entity File Number 001-39936  
Entity Registrant Name DIAMONDHEAD HOLDINGS CORP.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-3460766  
Entity Address, Address Line One 250 Park Ave. 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  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company true  
Entity Central Index Key 0001830188  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Unit each consisting of one class common stock and one fourth redeemable warrant    
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  
Class A Common Stock    
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  
Entity Common Stock, Shares Outstanding   34,500,000
Warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50    
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  
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   8,625,000