Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Mar. 31, 2025	Jul. 15, 2025	Sep. 30, 2024
Document Information [Line Items]
Document Period End Date	Mar. 31, 2025
Entity Registrant Name	Triumph Group, Inc.
Entity Central Index Key	0001021162
Document Type	10-K/A
Amendment Flag	true
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 977
Entity Common Stock, Shares Outstanding		77,786,859
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Document Financial Statement Error Correction Flag	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	true
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	51-0347963
Entity File Number	1-12235
Entity Address, Address Line One	555 E Lancaster Avenue
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Radnor
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19087
City Area Code	610
Local Phone Number	251-1000
Document Annual Report	true
Document Transition Report	false
Amendment Description	This Form 10-K/A is being filed as an amendment (the "Amendment") to the Annual Report on Form 10-K filed by Triumph Group, Inc. (the "Company") with the Securities and Exchange Commission (the "SEC") on May 28, 2025 (the "Original Filing"). This Amendment is being filed to include the information required by Items 10 through 14 of Part III of Form 10-K. We previously omitted this information from our Original Filing in reliance on General Instruction G(3) to Form 10-K, which permits the information in the above-referenced items to be incorporated in the Original Filing by reference to our definitive proxy statement if such statement is filed no later than 120 days after our fiscal year-end. We are filing this Amendment to provide the information required in Part III of Form 10-K because we may not file a definitive proxy statement containing that information within 120 days after the end of the fiscal year covered by our Original Filing. This Amendment amends and restates in their entirety Items 10, 11, 12, 13 and 14 of Part III of our Original Filing. The cover page of our Original Filing is also amended to delete the reference to the incorporation by reference of portions of our definitive proxy statement into Part III of the Original Filing. In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Item 15 of Part IV of the Original Filing is hereby amended solely to include, as Exhibits 31.3 and 31.4, new certifications by the Company’s Principal Executive Officer and Principal Financial Officer pursuant to Rule 13a-14(a) under the Exchange Act. Except as described above, this Amendment does not amend any other information set forth in the Original Filing, and the Company has not updated disclosures included therein to reflect any subsequent events. Accordingly, this Amendment should be read in conjunction with our Original Filing and with our filings with the SEC subsequent to the Original Filing.
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	TGI
Security Exchange Name	NYSE
Purchase Rights [Member]
Document Information [Line Items]
Title of 12(b) Security	Purchase rights
No Trading Symbol Flag	true
Security Exchange Name	NYSE

TRIUMPH GROUP INC 10-K/A