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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2019
Jun. 28, 2019
Cover page.    
Document Type 10-K  
Document Annual Report true  
Document Period End Date Dec. 31, 2019  
Document Transition Report false  
Entity File Number 001-35370  
Entity Registrant Name Luxfer Holdings PLC  
Entity Incorporation, State or Country Code X0  
Entity Tax Identification Number 98-1024030  
Entity Address, Address Line One Lumns Lane  
Entity Address, City or Town Manchester  
Entity Address, Country GB  
Entity Address, Postal Zip Code M27 8LN  
Country Region +44 (0)  
City Area Code 161  
Local Phone Number 300-0700  
Title of 12(b) Security Ordinary Shares, nominal value £0.50 each  
Trading Symbol LXFR  
Security Exchange Name NYSE  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Public Float   $ 640,603,954
Entity Common Stock, Shares Outstanding 27,431,283  
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE
Parts of the Registrant's definitive proxy statement for its annual general meeting to be held on June 3, 2020, to be filed no later than 120 days after the end of the fiscal year covered by this annual report, are incorporated by reference in this Form 10-K in response to Part III, Items 10, 11, 12, 13 and 14.
  
Entity Central Index Key 0001096056  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus FY  
Amendment Flag false