| Cover | Oct. 05, 2021 | Oct. 26, 2020 |
| Cover [Abstract] | ||
| Document Type | 8-K | |
| Document Period End Date | Oct. 5, 2021 | |
| Entity Registrant Name | Luxfer Holdings PLC | |
| Entity Incorporation, State or Country Code | X0 | |
| Entity File Number | 001-35370 | |
| Entity Tax Identification Number | 98-1024030 | |
| Entity Address, Address Line One | Lumns Lane | |
| Entity Address, City or Town | Manchester | |
| Entity Address, Postal Zip Code | M27 8LN | |
| Country Region | +1 | |
| City Area Code | 414 | |
| Local Phone Number | 269-2419 | |
| Written Communications | false | |
| Soliciting Material | false | |
| Pre-commencement Tender Offer | false | |
| Pre-commencement Issuer Tender Offer | false | |
| Title of 12(b) Security | Ordinary Shares, nominal value £0.50 each | |
| Trading Symbol | LXFR | |
| Security Exchange Name | NYSE | |
| Entity Emerging Growth Company | false | |
| Entity Central Index Key | 0001096056 | |
| Document Fiscal Year Focus | 2021 | |
| Document Fiscal Period Focus | Q3 | |
| Amendment Flag | false | |
| Entity Address, Country | GB |
