| Document And Entity Information | Aug. 26, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Aug. 26, 2024 |
| Entity Registrant Name | Loar Holdings Inc. |
| Entity Central Index Key | 0002000178 |
| Entity Emerging Growth Company | true |
| Entity File Number | 001-42030 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 82-2665180 |
| Entity Address, Address Line One | 20 New King Street |
| Entity Address, City or Town | White Plains |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10604 |
| City Area Code | 914 |
| Local Phone Number | 909-1311 |
| Entity Information, Former Legal or Registered Name | None |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Ex Transition Period | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | LOAR |
| Security Exchange Name | NYSE |
| Amendment Description | On August 26, 2024, Loar Holdings Inc., a Delaware corporation (the Company), filed a Current Report on Form 8-K (the Initial 8-K) to disclose that it had completed its previously announced acquisition of Applied Avionics Inc. (AAI). This Form 8/K-A amends the Initial 8-K to include historical audited and unaudited financial statements of AAI and the pro forma combined financial information required by Item 9.01 of Form 8-K that were excluded from the Initial 8-K in reliance on the instructions to such item. |
