v3.26.1
Cover
Apr. 08, 2026
Entity Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 08, 2026
Current Fiscal Year End Date --12-31
Entity File Number 001-41757
Entity Registrant Name Haymaker Acquisition Corp. 4
Entity Central Index Key 0001970509
Entity Tax Identification Number 87-2213850
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 817 E. 4th Street
Entity Address, City or Town Tulsa
Entity Address, State or Province OK
Entity Address, Postal Zip Code 74120
City Area Code 918
Local Phone Number 355-5700
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
Former Address [Member]  
Entity Information [Line Items]  
Entity Address, Address Line One 324 Royal Palm Way
Entity Address, Address Line Two Suite 300-i
Entity Address, City or Town Palm Beach
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33480