| Cover | Oct. 26, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 8, 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 | 2020 |
| Document Fiscal Period Focus | Q3 |
| Amendment Flag | false |
| Entity Address, Country | GB |
