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Document and Entity Information
Feb. 26, 2025
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0001915380
Document Type 8-K
Document Period End Date Feb. 26, 2025
Entity Registrant Name dMY Squared Technology Group, Inc.
Entity Incorporation State Country Code MA
Entity File Number 001-41519
Entity Tax Identification Number 88-0748933
Entity Address, Address Line One 1180 North Town Center Drive
Entity Address, Address Line Two Suite 100
Entity Address, City or Town Las Vegas
Entity Address, State or Province NV
Entity Address, Postal Zip Code 89144
City Area Code (702)
Local Phone Number 781-4313
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Units Each Consisting Of One Share Of Class A Common Stock And One Half Of One Redeemable Warrant [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Units, each consisting of one share of Class A common stock and one-half of one redeemable warrant
Trading Symbol DMYY.U
Security Exchange Name NYSEAMER
Class A Common Stock Par Value 0.0001 Per Share 2 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Class A common stock, par value $0.0001 per share
Trading Symbol DMYY
Security Exchange Name NYSEAMER
Redeemable Warrants Each Whole Warrant Exercisable For One Share Of Class A Common Stock Each At An Exercise Price Of 11.50 Per Share 1 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Redeemable 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 DMYY.WS
Security Exchange Name NYSEAMER