v3.25.2
Cover Page - shares
6 Months Ended
Jun. 30, 2025
Jul. 23, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-31225  
Entity Registrant Name ENPRO INC  
Entity Incorporation, State or Country Code NC  
Entity Tax Identification Number 01-0573945  
Entity Address, Street 5605 Carnegie Boulevard  
Entity Address, Suite Suite 500  
Entity Address, City Charlotte  
Entity Address, State NC  
Entity Address, Postal Zip Code 28209  
City Area Code 704  
Local Phone Number 731-1500  
Title of each class Common stock, $0.01 par value  
Trading Symbol(s) NPO  
Name of each exchange on which registered NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   21,053,512
Amendment Flag false  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001164863  
Current Fiscal Year End Date --12-31