v3.25.3
Commitments and Contingencies - Additional Information (Details)
$ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended
Mar. 24, 2023
Entity
Dec. 16, 2022
USD ($)
Prp
Oct. 18, 2021
USD ($)
mi
Aug. 31, 2017
Entity
Mar. 31, 2016
USD ($)
mi
Sep. 30, 2025
USD ($)
Prp
Sep. 30, 2025
USD ($)
Entity
mi
Dec. 31, 2024
USD ($)
Loss Contingencies [Line Items]                
Number of identified non governmental potentially responsible parties | Entity       120        
Environmental Loss Contingency           Accrued compensation and benefits Accrued compensation and benefits Accrued compensation and benefits
Accrual for environmental loss contingencies           $ 0.3 $ 0.3 $ 0.3
District Court Approval Of Consent Decree Member                
Loss Contingencies [Line Items]                
Number of entities, in addition to Hexcel, who received a directive from the New Jersey Department of Environmental Protection           84 48  
New Jersey Requesting Court Approval for Settlement   $ 150.0            
Escrow Deposit   $ 150.0            
Lower Passaic River                
Loss Contingencies [Line Items]                
Number of entities, in addition to Hexcel, who received a directive from the New Jersey Department of Environmental Protection | Prp   83            
'Length of river to perform a Remedial Investigation/Feasibility Study (“RI/FS”) of environmental conditions | mi             17  
Lower Passaic River | Minimum                
Loss Contingencies [Line Items]                
Portion of the river for which Record of Decision setting forth the EPA's selected remedy (in miles) | mi         8      
Expected cost of capping and dredging of the lower eight miles of the river by EPA     $ 308.7   $ 970.0      
Lower Passaic River | Maximum                
Loss Contingencies [Line Items]                
Portion of the river for which Record of Decision setting forth the EPA's selected remedy (in miles) | mi     9          
Expected cost of capping and dredging of the lower eight miles of the river by EPA     $ 661.5   $ 2,070.0      
Unilateral Administrative Order [Member]                
Loss Contingencies [Line Items]                
Number of entities, in addition to Hexcel, who received a directive from the New Jersey Department of Environmental Protection | Entity 38