Cover - USD ($)	12 Months Ended
Cover - USD ($)	Dec. 31, 2025	Mar. 30, 2026	Jun. 30, 2025
Entity Information [Line Items]
Document Type	10-K/A
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2025
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2025
Current Fiscal Year End Date	--12-31
Entity File Number	001-42451
Entity Registrant Name	TRANSLATIONAL DEVELOPMENT ACQUISITION CORP.
Entity Central Index Key	0001926599
Entity Tax Identification Number	00-0000000
Entity Incorporation, State or Country Code	E9
Entity Address, Address Line One	52 E. 83rd Street
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10028
City Area Code	917
Local Phone Number	979-3072
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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
Elected Not To Use the Extended Transition Period	false
Entity Shell Company	true
Entity Public Float			$ 177,675,000
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Common Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		17,250,000
Common Class B [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		4,657,500
Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant [Member]
Entity Information [Line Items]
Title of 12(b) Security	Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant
Trading Symbol	TDACU
Security Exchange Name	NASDAQ
Class A ordinary shares, $0.0001 par value per share [Member]
Entity Information [Line Items]
Title of 12(b) Security	Class A ordinary shares, $0.0001 par value per share
Trading Symbol	TDAC
Security Exchange Name	NASDAQ
Redeemable warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 [Member]
Entity Information [Line Items]
Title of 12(b) Security	Redeemable warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50
Trading Symbol	TDACW
Security Exchange Name	NASDAQ

Translational Development Acquisition Corp. 10-K/A