Organization - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 12, 2024	Apr. 29, 2024	Mar. 31, 2025	Dec. 31, 2024	Apr. 16, 2024
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Par value per share			$ 0.01	$ 0.01
IPO
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Sale of share of common stock		12,600,000
Par value per share		$ 0.01
Offering price per share		$ 28
Proceeds from issue of stock after deducting expenses		$ 325.4
Underwriting discounts commissions and other offering costs		$ 28.8
Follow-on Offering
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Sale of share of common stock	3,852,500
Offering price per share	$ 85
Proceeds from issue of stock after deducting expenses	$ 311.6
Underwriting discounts commissions and other offering costs	$ 16.0
Loar Holdings Inc
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Shares of common stock recieved					377,450.980392157