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Cover page - USD ($)
 12 Months Ended
Dec. 31, 2024
Feb. 14, 2025
Jun. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-37586    
Entity Registrant Name INGEVITY CORPORATION    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-4027764    
Entity Address, Address Line One 4920 O'Hear Avenue Suite 400    
Entity Address, City or Town North Charleston    
Entity Address, State or Province SC    
Entity Address, Postal Zip Code 29405    
City Area Code 843    
Local Phone Number 740-2300    
Title of 12(b) Security Common Stock ($0.01 par value)    
Trading Symbol NGVT    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 1,582,951,662
Entity Common Stock, Shares Outstanding   36,351,236  
Documents Incorporated by Reference Portions of the Company's definitive 2025 Annual Meeting Proxy Statement are incorporated by reference into Part III of this report.    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001653477