Cover Page - shares	6 Months Ended
	Sep. 30, 2025	Jan. 20, 2026
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2025
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2026
Current Fiscal Year End Date	--03-31
Entity File Number	001-42982
Entity Registrant Name	DAEDALUS SPECIAL ACQUISITION CORP.
Entity Central Index Key	0002082149
Entity Tax Identification Number	00-0000000
Entity Incorporation, State or Country Code	E9
Entity Address, Address Line One	50 Sloane Avenue
Entity Address, City or Town	London
Entity Address, Country	GB
Entity Address, Postal Zip Code	SW3 3DD
City Area Code	+44
Local Phone Number	207 297 3592
Entity Current Reporting Status	No
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
Class A Ordinary Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		25,685,000
Class B Ordinary Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		8,625,000
Units, each consisting of one Class A ordinary share and one-fourth of one Redeemable Warrant
Document Information [Line Items]
Title of 12(b) Security	Units, each consisting of one Class A ordinary share and one-fourth of one Redeemable Warrant
Trading Symbol	DSACU
Security Exchange Name	NASDAQ
Class A ordinary share, par value $0.0001 per share
Document Information [Line Items]
Title of 12(b) Security	Class A ordinary share, par value $0.0001 per share
Trading Symbol	DSAC
Security Exchange Name	NASDAQ
Warrants entitling the holder to purchase one Class A ordinary share at a price of $11.50 per share
Document Information [Line Items]
Title of 12(b) Security	Warrants entitling the holder to purchase one Class A ordinary share at a price of $11.50 per share
Trading Symbol	DSACW
Security Exchange Name	NASDAQ