Luxfer (LXFR) 10-Q 26 Apr 23 2023 Q1 Quarterly report Financial data

Cover

Cover	3 Months Ended
	Apr. 02, 2023 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 02, 2023
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	8989 North Port Washington Road, Suite 211
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53217
Country Region	+1
City Area Code	414
Local Phone Number	269-2419
Title of 12(b) Security	Ordinary Shares, nominal value £0.50 each
Trading Symbol	LXFR
Security Exchange Name	NYSE
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 Common Stock, Shares Outstanding (in shares)	26,931,897
Entity Central Index Key	0001096056
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Address, Country	GB

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions		3 Months Ended
		Apr. 02, 2023	Mar. 27, 2022
Income Statement [Abstract]
Net sales		$ 101.3	$ 97
Cost of goods sold		(80.2)	(72.8)
Gross profit		21.1	24.2
Selling, general and administrative expenses		(12.5)	(10.7)
Research and development		(1.2)	(1.3)
Restructuring charges		(0.3)	(1.4)
Acquisition and disposal related costs		0	(0.2)
Operating income		7.1	10.6
Interest expense		(1.3)	(0.8)
Defined benefit pension (charge) / credit		(8.9)	0.4
(Loss) / income before income taxes		(3.1)	10.2
Credit / (provision) for income taxes		3.6	(2.5)
Net income from continuing operations		0.5	7.7
Net income / (loss) from discontinued operations		0	(0.1)
Net income		$ 0.5	$ 7.6
Earnings / (loss) per share
Basic from continuing operations (usd per share)	[1]	$ 0.02	$ 0.28
Basic from discontinued operations (usd per share)	[1],[2]	0	0
Basic (usd per share)	[1]	0.02	0.28
Diluted from continuing operations (usd per share)	[1]	0.02	0.28
Diluted from discontinued operations (usd per share)	[1],[2]	0	0
Diluted (usd per share)	[1]	$ 0.02	$ 0.28
Weighted average ordinary shares outstanding
Basic (in shares)		26,921,010	27,490,741
Diluted (in shares)		27,071,494	27,696,118
[1]The calculation of earnings per share is performed separately for continuing and discontinued operations. As a result, the sum of the two in any particular period may not equal the earnings-per-share amount in total.[2] The loss per share for discontinued operations in the First Quarter of 2022 has not been diluted, since the incremental shares included in the weighted-average number of shares outstanding would have been anti-dilutive.

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 0.5	$ 7.6
Other comprehensive income / (loss)
Net change in foreign currency translation adjustment, net of tax	3.4	(1.8)
Pension and post-retirement actuarial gains, net of $4.9 and $0.1 tax, respectively	6.8	0.4
Other comprehensive income / (loss), net of tax	10.2	(1.4)
Total comprehensive income	$ 10.7	$ 6.2

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Statement of Comprehensive Income [Abstract]
Tax on other comprehensive income	$ 4.9	$ 0.1

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 1.8	$ 12.6
Restricted cash	0.3	0.3
Accounts and other receivables, net of allowances of $0.5 and $0.4, respectively	74.2	67.8
Inventories	129.4	111.1
Current assets held-for-sale	7.8	9.3
Total current assets	213.5	201.1
Non-current assets
Property, plant and equipment, net	77.6	77.7
Right-of-use assets from operating leases	19.2	19.8
Goodwill	66.5	65.6
Intangibles, net	12.4	12.5
Deferred tax assets	3.2	3
Investments and loans to joint ventures and other affiliates	0.3	0.4
Pensions and other retirement benefits	28.4	27
Total assets	421.1	407.1
Current liabilities
Short-term debt	25	25
Accounts payable	39.3	37.8
Accrued liabilities	28.9	29.4
Taxes on income	2.7	1.8
Current liabilities held-for-sale	4.1	5
Other current liabilities	11.8	11.2
Total current liabilities	111.8	110.2
Non-current liabilities
Long-term debt	66.4	56.2
Pensions and other retirement benefits	0	4.5
Deferred tax liabilities	11.4	9.9
Other non-current liabilities	17.5	19
Total liabilities	207.1	199.8
Shareholders' equity
Additional paid-in capital	221.7	221.4
Treasury shares	(21.2)	(20.4)
Own shares held by ESOP	(1)	(1)
Retained earnings	117.2	120.2
Accumulated other comprehensive loss	(129.2)	(139.4)
Total shareholders' equity	214	207.3
Total liabilities and shareholders' equity	421.1	407.1
Ordinary shares
Shareholders' equity
Common stock	$ 26.5	$ 26.5

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) $ in Millions	Apr. 02, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares
Accounts and other receivables, net of allowance | $	$ 0.5	$ 0.4
Ordinary shares
Common stock, par value (in GBP per share) | (per share)	$ 0.50
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	28,944,000
Common stock, shares outstanding (in shares)	28,944,000

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Operating activities
Net income	$ 0.5	$ 7.6
Net (income) / loss from discontinued operations	0	0.1
Net income from continuing operations	0.5	7.7
Adjustments to reconcile net income to net cash used by operating activities
Depreciation	3.1	3.5
Amortization of purchased intangible assets	0.2	0.2
Amortization of debt issuance costs	0.1	0.2
Share-based compensation charges	0.6	0.2
Deferred income taxes	1.2	0.1
Defined benefit pension charge / (credit)	8.9	(0.4)
Defined benefit pension contributions	(2.3)	0
Changes in assets and liabilities
Accounts and other receivables	(2.3)	(12.2)
Inventories	(17.1)	(16.2)
Other current assets	1.5	(3)
Accounts payable	(2.4)	6.8
Accrued liabilities	(1)	3.4
Other current liabilities	(4.4)	2
Other non-current assets and liabilities	(1)	(1.6)
Net cash used by operating activities - continuing	(14.4)	(9.3)
Net cash provided by operating activities - discontinued	0	0
Net cash used by operating activities	(14.4)	(9.3)
Investing activities
Capital expenditures	(2)	(1)
Net cash used by investing activities - continuing	(2)	(1)
Net cash used by investing activities - discontinued	0	0
Net cash used by investing activities	(2)	(1)
Financing activities
Net drawdown of long-term borrowings	9.9	26.7
Repurchase of own shares	(0.8)	(1.5)
Share-based compensation cash paid	(0.3)	(0.4)
Dividends paid	(3.5)	(3.4)
Net cash provided by financing activities	5.3	21.4
Effect of exchange rate changes on cash and cash equivalents	0.3	(0.2)
Net increase	(10.8)	10.9
Cash, cash equivalents and restricted cash; beginning of year	12.9	6.4
Cash, cash equivalents and restricted cash; end of the First Quarter	2.1	17.3
Supplemental cash flow information:
Interest payments	1.4	0.8
Income tax receipts, net	$ (0.5)	$ (0.1)

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) - USD ($) shares in Millions, $ in Millions	Total	Additional paid-in capital	Treasury shares	Own shares held by ESOP	Retained earnings	Accumulated other comprehensive loss	Ordinary shares Common stock	Deferred shares Common stock
Beginning balance at Dec. 31, 2021	$ 209.1	$ 70.9	$ (9.6)	$ (1.1)	$ 107.5	$ (135)	$ 26.5	$ 149.9
Beginning balance (in shares) at Dec. 31, 2021			(0.6)	(0.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7.6				7.6
Other comprehensive income / (loss), net of tax	(1.4)					(1.4)
Dividends declared	(7)				(7)
Share-based compensation	0.2	0.2
Share buyback (in shares)			(0.1)
Share buyback	(1.5)		$ (1.5)
Utilization of shares from ESOP to satisfy share based compensation	(0.4)	(0.4)
Ending balance at Mar. 27, 2022	206.6	70.7	$ (11.1)	$ (1.1)	108.1	(136.4)	26.5	149.9
Ending balance (in shares) at Mar. 27, 2022			(0.7)	(0.8)
Beginning balance at Dec. 31, 2022	207.3	221.4	$ (20.4)	$ (1)	120.2	(139.4)	26.5	0
Beginning balance (in shares) at Dec. 31, 2022			(1.3)	(0.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0.5				0.5
Other comprehensive income / (loss), net of tax	10.2					10.2
Dividends declared	(3.5)				(3.5)
Share-based compensation	0.6	0.6
Share buyback (in shares)			(0.1)
Share buyback	(0.8)		$ (0.8)
Utilization of shares from ESOP to satisfy share based compensation	(0.3)	(0.3)		$ 0
Utilization of shares from ESOP to satisfy share based compensation (in shares)				0
Ending balance at Apr. 02, 2023	$ 214	$ 221.7	$ (21.2)	$ (1)	$ 117.2	$ (129.2)	$ 26.5	$ 0
Ending balance (in shares) at Apr. 02, 2023			(1.4)	(0.7)

Basis of Presentation and Respo

Basis of Presentation and Responsibility for interim Financial Statements	3 Months Ended
	Apr. 02, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Responsibility for interim Financial Statements	Basis of Presentation and Responsibility for interim Financial Statements We prepared the accompanying unaudited condensed consolidated financial statements of Luxfer Holdings PLC and all wholly-owned, majority owned or otherwise controlled subsidiaries on the same basis as our annual audited financial statements. We condensed or omitted certain information and footnote disclosures normally included in our annual audited financial statements, which we prepared in accordance with U.S. Generally Accepted Accounting Principles (GAAP). Our quarterly financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2022. As used in this report, the terms "we," "us," "our," "Luxfer" and "the Company" mean Luxfer Holdings PLC and its subsidiaries, unless the context indicates another meaning. In the opinion of management, our financial statements reflect all adjustments, which are only of a normal recurring nature, necessary for the fair statement of financial statements for interim periods in accordance with U.S. GAAP and with the instructions to Form 10-Q in Article 10 of Securities and Exchange Commission (SEC) Regulation S-X. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions about future events that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates, and any such differences may be material to our financial statements. Our fiscal year ends on December 31. We report our interim quarterly periods on a 13-week quarter basis, ending on a Sunday. The First Quarter 2023, ended on April 2, 2023, and the First Quarter 2022, ended on March 27, 2022. Accounting standards issued but not yet effective None that are expected to be material to the Company.

Earnings per share

Earnings per share	3 Months Ended
	Apr. 02, 2023
Earnings Per Share [Abstract]
Earnings per share	Earnings per share Basic earnings per share are computed by dividing net income or loss for the period by the weighted-average number of ordinary shares outstanding, net of treasury shares and shares held in ESOP. Diluted earnings per share are computed by dividing net income or loss for the period by the weighted average number of ordinary shares outstanding and the dilutive ordinary shares equivalents. Basic and diluted earnings per share were calculated as follows: First Quarter In millions except share and per-share data 2023 2022 Basic earnings: Net income from continuing operations $ 0.5 $ 7.7 Net income / (loss) from discontinued operations — (0.1) Net income $ 0.5 $ 7.6 Weighted average number of £0.50 ordinary shares: For basic earnings per share 26,921,010 27,490,741 Dilutive effect of potential common stock 150,484 205,377 For diluted earnings per share 27,071,494 27,696,118 Earnings / (loss) per share using weighted average number of ordinary shares outstanding (1) : Basic earnings per ordinary share for continuing operations $ 0.02 $ 0.28 Basic earnings / (loss) per ordinary share for discontinued operations — — Basic earnings per ordinary share $ 0.02 $ 0.28 Diluted earnings per ordinary share for continuing operations $ 0.02 $ 0.28 Diluted earnings / (loss) per ordinary share for discontinued operations — — Diluted earnings per ordinary share $ 0.02 $ 0.28 (1) The calculation of earnings per share is performed separately for continuing and discontinued operations. As a result, the sum of the two in any particular period may not equal the earnings-per-share amount in total In the first quarter of 2022, basic average shares outstanding and diluted average shares outstanding were the same for discontinued operations because the effect of potential shares of common stock was anti-dilutive since the Company generated a net loss from discontinued operations. .

Net Sales

Net Sales	3 Months Ended
	Apr. 02, 2023
Revenue from Contract with Customer [Abstract]
Net Sales	Net Sales Disaggregated sales disclosures for the quarters ended April 2, 2023, and March 27, 2022, are included below and in Note 13, Segmental Information. First Quarter 2023 2022 In millions Gas Cylinders Elektron Total Gas Cylinders Elektron Total General industrial $ 9.5 $ 22.9 $ 32.4 $ 8.4 $ 26.9 $ 35.3 Transportation 13.9 12.8 26.7 16.9 12.9 29.8 Defense, First Response & Healthcare 18.1 24.1 42.2 17.1 14.8 31.9 $ 41.5 $ 59.8 $ 101.3 $ 42.4 $ 54.6 $ 97.0

Restructuring

Restructuring	3 Months Ended
	Apr. 02, 2023
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring The $0.3 million (2021: $1.4 million) restructuring charges in the first quarter of 2023, predominantly relates to costs incurred in streamlining our North American Gas Cylinder business. The $1.4 million restructuring charge in 2022 relates solely to costs associated with the closure of Luxfer Gas Cylinders France, which ceased operations in 2019. Restructuring-related costs by reportable segment were as follows: First Quarter In millions 2023 2022 Severance and related costs Gas Cylinders $ 0.3 $ 1.4 Elektron — — Total restructuring charges $ 0.3 $ 1.4 Activity related to restructuring, recorded in Other current liabilities in the consolidated balance sheets is summarized as follows: In millions 2023 Balance at January 1, $ 3.7 Costs incurred 0.3 Cash payments and other (0.2) Balance at April 2, $ 3.8

Acquisition and disposal relate

Acquisition and disposal related costs	3 Months Ended
	Apr. 02, 2023
Business Combinations [Abstract]
Acquisition and disposal related costs	Acquisition and disposal related costsAcquisition-related costs of $0.2 million in the first quarter of 2022 represent professional fees incurred in relation to the SCI acquisition.

Supplementary balance sheet inf

Supplementary balance sheet information	3 Months Ended
	Apr. 02, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplementary balance sheet information	Supplementary balance sheet information April 2, December 31, In millions 2023 2022 Accounts and other receivables Trade receivables $ 62.0 $ 56.4 Related parties 0.1 0.1 Prepayments and accrued income 6.5 6.6 Derivative financial instruments 0.1 0.7 Other receivables 5.5 4.0 Total accounts and other receivables $ 74.2 $ 67.8 Inventories Raw materials and supplies $ 55.9 $ 42.7 Work-in-process 44.3 44.0 Finished goods 29.2 24.4 Total inventories $ 129.4 $ 111.1 Property, plant and equipment, net Land, buildings and leasehold improvements $ 59.7 $ 58.9 Machinery and equipment 258.8 254.9 Construction in progress 11.7 9.8 Total property, plant and equipment 330.2 323.6 Accumulated depreciation and impairment (252.6) (245.9) Total property, plant and equipment, net $ 77.6 $ 77.7 Other current liabilities Restructuring provision $ 3.8 $ 3.7 Short term provision — 0.1 Derivative financial instruments 0.2 0.4 Operating lease liability 5.5 4.7 Advance payments 2.3 2.3 Total other current liabilities $ 11.8 $ 11.2 Other non-current liabilities Contingent liabilities $ 0.5 $ 0.7 Operating lease liability 16.8 18.2 Other non-current liabilities 0.2 0.1 Total other non-current liabilities $ 17.5 $ 19.0

Goodwill and other identifiable

Goodwill and other identifiable intangible assets	3 Months Ended
	Apr. 02, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and other identifiable intangible assets	Goodwill and other identifiable intangible assets Changes in goodwill during the first three months ended April 2, 2023, were as follows: In millions Gas Cylinders Elektron Total At January 1, 2023 $ 25.0 $ 40.6 $ 65.6 Exchange difference 0.6 0.3 0.9 Net balance at April 2, 2023 $ 25.6 $ 40.9 $ 66.5 Accumulated goodwill impairment losses in relation to continuing activities were $8.0 million as of April 2, 2023 and December 31, 2022.. Identifiable intangible assets consisted of the following: In millions Customer relationships Technology and trading related Total Cost: At January 1, 2023 $ 15.2 $ 7.4 $ 22.6 Exchange movements — 0.2 0.2 At April 2, 2023 $ 15.2 $ 7.6 $ 22.8 Accumulated amortization: At January 1, 2023 $ 6.1 $ 4.0 $ 10.1 Provided during the period 0.1 0.1 0.2 Exchange movements — 0.1 0.1 At April 2, 2023 $ 6.2 $ 4.2 $ 10.4 Net book values: At January 1, 2023 $ 9.1 $ 3.4 $ 12.5 At April 2, 2023 $ 9.0 $ 3.4 $ 12.4 Identifiable intangible asset amortization expense was $0.2 million and $0.2 million for the First Quarters of 2023 and 2022 respectively. Intangible asset amortization expense during each of the following five years is expected to be approximately $0.7 million.

Debt

Debt	3 Months Ended
	Apr. 02, 2023
Debt Disclosure [Abstract]
Debt	Debt Debt outstanding was as follows: In millions April 2, 2023 December 31, 2022 4.88% Loan Notes due 2023 $ 25.0 $ 25.0 4.94% Loan Notes due 2026 25.0 25.0 Revolving credit facility 42.2 31.9 Unamortized debt issuance costs (0.8) (0.7) Total debt $ 91.4 $ 81.2 Less current portion $ (25.0) $ (25.0) Non-current debt $ 66.4 $ 56.2 The weighted-average interest rate on the revolving credit facility was 6.00% for the First Quarter of 2023 and 3.80% for the full-year 2022. 8. Debt (continued) The maturity profile of the Company's debt, excluding unamortized issuance costs and discounts, is as follows: In millions 2023 2024 2025 2026 Thereafter Total Loan Notes due 2023 25.0 — — — — 25.0 Loan Notes due 2026 — — — 25.0 — 25.0 Revolving credit facility — — — 42.2 — 42.2 Total debt $ 25.0 $ — $ — $ 67.2 $ — $ 92.2 Loan notes due and shelf facility The Note Purchase Agreement and Private Shelf Agreement requires us to maintain compliance with a minimum interest coverage ratio and a leverage ratio. We have been in compliance with the covenants under the Note Purchase and Private Shelf Agreement throughout all of the quarterly measurement dates from and including September 30, 2014, to April 2, 2023. The Loan Notes due 2023 and 2026, the Shelf Facility and the Note Purchase and Private Shelf Agreement are governed by the law of the State of New York. Senior Facilities Agreement During the first quarter of 2023, we drew down net $9.9 million on the Revolving Credit Facility and the balance outstanding at April 2, 2023, was $42.2 million, and at December 31, 2022, was $31.9 million, with $82.8 million undrawn at April 2, 2023. We have been in compliance with the covenants under the Senior Facilities Agreement throughout all of the quarterly measurement dates to April 2, 2023.

Discontinued Operations

Discontinued Operations	3 Months Ended
	Apr. 02, 2023
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations Our Superform aluminum superplastic forming business operating in the U.S. was historically included in the Gas Cylinders segment. As a result of our decision to exit non-strategic aluminum product lines, we have reflected the results of operations of this business as discontinued operations in the Condensed Consolidated Statements of Income for all periods presented. We expect the sale of our Superform business to occur in 2023. The assets and liabilities of the Superform business have been presented within assets held-for-sale and liabilities held-for-sale in the consolidated balance sheets for 2023 and 2022. Results of discontinued operations in the first quarter of 2023 and 2022 were as follows: First Quarter In millions 2023 2022 Net sales $ 2.3 $ 1.7 Cost of goods sold (1.9) (1.6) Gross profit $ 0.4 $ 0.1 Selling, general and administrative expenses (0.3) (0.2) Restructuring charges (0.1) — Operating profit / (loss) $ — $ (0.1) Tax (charge) / credit — — Net profit / (loss) $ — $ (0.1) 9. Discontinued Operations (continued) The assets and liabilities classified as held-for-sale related to discontinued operations were as follows: Held-for-sale assets April 2, December 31, In millions 2023 2022 Inventory 2.4 2.7 Accounts and other receivables 1.6 2.7 Current assets $ 4.0 $ 5.4 Right-of-use-assets 2.6 2.7 Held-for-sale assets $ 6.6 $ 8.1 Held-for-sale liabilities Accounts payable 0.8 0.8 Accrued liabilities 0.4 0.2 Other liabilities 2.9 4.0 Held-for-sale liabilities $ 4.1 $ 5.0 Also included within assets held-for-sale in 2023 and 2022 are land and buildings valued at $1.2 million, within our Elektron Segment. There was no depreciation and amortization, capital expenditures and significant non-cash items. Cash balances are swept into the treasury entities at the end of each day, these sweeps are recorded within operating cash flows in the statements of cash flows.

Income Taxes

Income Taxes	3 Months Ended
	Apr. 02, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We manage our affairs so that we are centrally managed and controlled in the United Kingdom (“U.K.”) and therefore have our tax residency in the U.K. The provision for income taxes consists of provisions for the U.K. and international income taxes. We operate in an international environment with operations in various locations outside the U.K. Accordingly, the consolidated income tax rate is a composite rate reflecting the earnings in the various locations and the applicable rates. The effective income tax rate on continuing operations for the Quarter ended April 2, 2023, was 116.0%, compared to 24.5% for the Quarter ended March 27, 2022. The rate was impacted by non-deductible expenses and a deferred tax credit, primarily in relation to the U.S. pension buyout.

Share Plans

Share Plans	3 Months Ended
	Apr. 02, 2023
Share-Based Payment Arrangement [Abstract]
Share Plans	Share Plans Total share-based compensation expense for the quarters ended April 2, 2023 and March 27, 2022 was as follows: First Quarter In millions 2023 2022 Total share-based compensation charges $ 0.6 $ 0.2 In March 2023, we issued our annual share-based compensation grants under the Luxfer Holdings PLC Long-Term Umbrella Incentive Plan. The total number of awards issued was approximately 126,600 and the weighted average fair value of options granted in 2023 was estimated to be $17.94 per share. Also in March 2023, approximately 10,000 awards were granted based on the achievement of total shareholder return targets from the period January 1, 2020 to December 31, 2022. 50% of these awards vested immediately upon grant, with the remaining 50% vesting in March 2024. The following table illustrates the assumptions used in deriving the fair value of share options granted during the First Quarter of 2023 and the year-ended December 31, 2022: First Quarter Year ended December 31, 2023 2022 Dividend yield (%) 2.75 - 3.41 2.75 - 3.41 Expected volatility range (%) 36.11 - 49.43 36.11 - 49.43 Risk-free interest rate (%) 1.28 - 2.99 1.28 - 2.99 Expected life of share options range (years) 0.50 - 4.00 0.50 - 4.00 Forfeiture rate (%) 5.00 5.00 Weighted average exercise price ($) $1.00 $1.00 Model used Black-Scholes & Monte-Carlo Black-Scholes & Monte-Carlo The expected life of the share options is based on historical data and current expectations, and is not necessarily indicative of exercise patterns that may occur. The expected volatility reflects the assumption that the historical volatility over a period similar to the life of the options is indicative of future trends, which may not necessarily be the actual outcome.

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Apr. 02, 2023
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity Dividends paid and proposed First Quarter In millions 2023 2022 Dividends declared and paid during the year: Interim dividend paid February 4, 2022 ($0.125 per ordinary share) $ — $ 3.4 Interim dividend paid February 1 2023 ($0.130 per ordinary share) 3.5 — Interim dividend declared March 10 2022, and paid May 4, 2022 ($0.130) per ordinary share) — 3.6 $ 3.5 $ 7.0 In millions 2023 2022 Dividends declared and paid after the quarter end (not recognized as a liability at the quarter end): Interim dividend declared April 3 2023, and to be paid May 3, 2023 ($0.130 per ordinary share) 3.5 — $ 3.5 $ —

Segmental Information

Segmental Information	3 Months Ended
	Apr. 02, 2023
Segment Reporting [Abstract]
Segmental Information	Segmental Information We classify our operations into two core business segments, Gas Cylinders and Elektron, based primarily on shared economic characteristics for the nature of the products and services; the nature of the production processes; the type or class of customer for their products and services; the methods used to distribute their products or provide their services; and the nature of the regulatory environment. The Company has four identified business units, which aggregate into the two reportable segments. Luxfer Gas Cylinders forms the Gas Cylinders segment, and Luxfer MEL Technologies, Luxfer Magtech and Luxfer Graphic Arts aggregate into the Elektron segment. The Superform business unit used to aggregate into the Gas Cylinders segment, but is now recognized as discontinued operations. A summary of the operations of the segments is provided below: Gas Cylinders segment Our Gas Cylinders segment manufactures and markets specialized products using composites and aluminum, including pressurized cylinders for use in various applications including self-contained breathing apparatus (SCBA) for firefighters, containment of oxygen and other medical gases for healthcare, alternative fuel vehicles, and general industrial. Elektron segment Our Elektron segment focuses on specialty materials based primarily on magnesium and zirconium, with key product lines including advanced lightweight magnesium alloys with a variety of uses across a variety of industries; magnesium powders for use in countermeasure flares, as well as heater meals; photoengraving plates for graphic arts; and high-performance zirconium-based materials and oxides used as catalysts and in the manufacture of advanced ceramics, fiber-optic fuel cells, and many other performance products. Other Other primarily represents unallocated corporate expense and includes non-service related defined benefit pension cost / credit. Management monitors the operating results of its reportable segments separately for the purpose of making decisions about resource allocation and performance assessment. Segment performance is evaluated by the chief operating decision maker, who is responsible for allocating resources and assessing performance of the operating segments as the CEO, using adjusted EBITDA, which we defined as segment income and are based on operating income adjusted for share based compensation charges; loss on disposal of property, plant and equipment; restructuring charges; impairment charges; acquisition and disposal related gains and costs; other charges; depreciation and amortization; and unwind of the discount on deferred consideration. Unallocated assets and liabilities include those which are held on behalf of the Company and cannot be allocated to a segment, such as taxation, investments, cash, retirement benefits obligations, bank and other loans and holding company assets and liabilities. Financial information by reportable segment for the Quarters ended April 2, 2023, and March 27, 2022, is included in the following summary: Net sales Adjusted EBITDA First Quarter First Quarter In millions 2023 2022 2023 2022 Gas Cylinders segment $ 41.5 $ 42.4 $ 2.5 $ 2.7 Elektron segment 59.8 54.6 8.8 13.4 Consolidated $ 101.3 $ 97.0 $ 11.3 $ 16.1 Depreciation and amortization Restructuring charges First Quarter First Quarter In millions 2023 2022 2023 2022 Gas Cylinders segment $ 1.1 $ 1.4 $ 0.3 $ 1.4 Elektron segment 2.2 2.3 — — Consolidated $ 3.3 $ 3.7 $ 0.3 $ 1.4 13. Segmental Information (continued) Total assets Capital expenditures First Quarter, December 31, First Quarter In millions 2023 2022 2023 2022 Gas Cylinders segment $ 143.3 $ 133.1 $ 0.3 $ 0.2 Elektron segment 234.4 216.4 1.7 0.8 Other 36.8 49.5 — — Discontinued operations $ 6.6 $ 8.1 $ (0.1) $ — Consolidated $ 421.1 $ 407.1 $ 1.9 $ 1.0 Property, plant and equipment, net First Quarter December 31, In millions 2023 2022 U.S. $ 40.5 $ 41.6 United Kingdom 33.0 32.0 Canada 2.7 2.8 Rest of Europe 1.0 1.0 Asia Pacific 0.4 0.3 $ 77.6 $ 77.7 The following table presents a reconciliation of Adjusted EBITDA to net income from continuing operations: First Quarter In millions 2023 2022 Adjusted EBITDA $ 11.3 $ 16.1 Other share-based compensation charges (0.6) (0.2) Depreciation and amortization (3.3) (3.7) Restructuring charges (0.3) (1.4) Acquisition and disposal related costs — (0.2) Defined benefits pension credit (8.9) 0.4 Interest expense, net (1.3) (0.8) Net (loss) / income before income taxes from continuing operations $ (3.1) $ 10.2 The following tables present certain geographic information by geographic region for the First Quarter ended April 2, 2023, and March 27, 2022: Net Sales (1) First Quarter 2023 2022 $M Percent $M Percent United States $ 57.7 57.0 % $ 55.3 57.0 % U.K. 5.6 5.5 % 5.4 5.6 % Germany 6.3 6.2 % 4.5 4.6 % France 2.1 2.1 % 3.5 3.6 % Italy 3.3 3.3 % 2.3 2.4 % Top five countries $ 75.0 74.1 % $ 71.0 73.2 % Rest of Europe 7.4 7.3 % 6.0 6.2 % Asia Pacific 14.8 14.6 % 14.6 15.1 % Other (2) 4.1 4.0 % 5.4 5.6 % $ 101.3 $ 97.0 (1) Net sales are based on the geographic destination of sale. (2) Other includes Canada, South America, Latin America and Africa.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Apr. 02, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Committed and uncommitted banking facilities The Company had committed banking facilities of $125.0 million at April 2, 2023 and $100.0 million December 31, 2022. Of these committed facilities, $42.2 million was drawn at April 2, 2023 and $10.8 million at December 31, 2022. The Company also had an additional $25.0 million of uncommitted facilities through an accordion provision at April 2, 2023 and $50.0 million at December 31, 2022. Uncommitted Facilities April 2, 2023 December 31, 2022 Facility Drawn Facility Drawn Bond and Guarantees $ 0.6 $ 0.2 $ 0.6 $ 0.2 Letters of Credit 2.0 1.5 2.0 1.5 Overdraft 4.0 — 4.0 — $ 6.6 $ 1.7 $ 6.6 $ 1.7 Contingencies

Subsequent Events

Subsequent Events	3 Months Ended
	Apr. 02, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsNo material events.

Pension Settlement

Pension Settlement	3 Months Ended
	Apr. 02, 2023
Retirement Benefits [Abstract]
Pension Settlement	Pension SettlementIn the first quarter of 2023, there was a $9.2 million charge in relation to the sale of the U.S. pension plan liability to an insurer, which included $2.3 million cash and $6.9 million in relation to the derecognition of the U.S. pension liability and reallocation of accumulated actuarial losses from other comprehensive income. This was partially offset by a $0.3 million (2022: $0.4 million) defined benefit credit on the U.K. pension plan, consistent with the prior year.

Basis of Presentation and Res_2

Basis of Presentation and Responsibility for interim Financial Statements (Policies)	3 Months Ended
	Apr. 02, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of presentation	Basis of Presentation and Responsibility for interim Financial Statements We prepared the accompanying unaudited condensed consolidated financial statements of Luxfer Holdings PLC and all wholly-owned, majority owned or otherwise controlled subsidiaries on the same basis as our annual audited financial statements. We condensed or omitted certain information and footnote disclosures normally included in our annual audited financial statements, which we prepared in accordance with U.S. Generally Accepted Accounting Principles (GAAP). Our quarterly financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2022. As used in this report, the terms "we," "us," "our," "Luxfer" and "the Company" mean Luxfer Holdings PLC and its subsidiaries, unless the context indicates another meaning. In the opinion of management, our financial statements reflect all adjustments, which are only of a normal recurring nature, necessary for the fair statement of financial statements for interim periods in accordance with U.S. GAAP and with the instructions to Form 10-Q in Article 10 of Securities and Exchange Commission (SEC) Regulation S-X. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions about future events that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates, and any such differences may be material to our financial statements.
Fiscal year	Our fiscal year ends on December 31. We report our interim quarterly periods on a 13-week quarter basis, ending on a Sunday. The First Quarter 2023, ended on April 2, 2023, and the First Quarter 2022, ended on March 27, 2022.
Accounting standards issued but not yet effective	Accounting standards issued but not yet effective None that are expected to be material to the Company.

Earnings per share (Tables)

Earnings per share (Tables)	3 Months Ended
	Apr. 02, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	Basic and diluted earnings per share were calculated as follows: First Quarter In millions except share and per-share data 2023 2022 Basic earnings: Net income from continuing operations $ 0.5 $ 7.7 Net income / (loss) from discontinued operations — (0.1) Net income $ 0.5 $ 7.6 Weighted average number of £0.50 ordinary shares: For basic earnings per share 26,921,010 27,490,741 Dilutive effect of potential common stock 150,484 205,377 For diluted earnings per share 27,071,494 27,696,118 Earnings / (loss) per share using weighted average number of ordinary shares outstanding (1) : Basic earnings per ordinary share for continuing operations $ 0.02 $ 0.28 Basic earnings / (loss) per ordinary share for discontinued operations — — Basic earnings per ordinary share $ 0.02 $ 0.28 Diluted earnings per ordinary share for continuing operations $ 0.02 $ 0.28 Diluted earnings / (loss) per ordinary share for discontinued operations — — Diluted earnings per ordinary share $ 0.02 $ 0.28 (1) The calculation of earnings per share is performed separately for continuing and discontinued operations. As a result, the sum of the two in any particular period may not equal the earnings-per-share amount in total

Net Sales (Tables)

Net Sales (Tables)	3 Months Ended
	Apr. 02, 2023
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Disaggregated sales disclosures for the quarters ended April 2, 2023, and March 27, 2022, are included below and in Note 13, Segmental Information. First Quarter 2023 2022 In millions Gas Cylinders Elektron Total Gas Cylinders Elektron Total General industrial $ 9.5 $ 22.9 $ 32.4 $ 8.4 $ 26.9 $ 35.3 Transportation 13.9 12.8 26.7 16.9 12.9 29.8 Defense, First Response & Healthcare 18.1 24.1 42.2 17.1 14.8 31.9 $ 41.5 $ 59.8 $ 101.3 $ 42.4 $ 54.6 $ 97.0

Restructuring (Tables)

Restructuring (Tables)	3 Months Ended
	Apr. 02, 2023
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	Restructuring-related costs by reportable segment were as follows: First Quarter In millions 2023 2022 Severance and related costs Gas Cylinders $ 0.3 $ 1.4 Elektron — — Total restructuring charges $ 0.3 $ 1.4
Schedule of Restructuring Reserve	Activity related to restructuring, recorded in Other current liabilities in the consolidated balance sheets is summarized as follows: In millions 2023 Balance at January 1, $ 3.7 Costs incurred 0.3 Cash payments and other (0.2) Balance at April 2, $ 3.8

Supplementary balance sheet i_2

Supplementary balance sheet information (Tables)	3 Months Ended
	Apr. 02, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Condensed Balance Sheet	Supplementary balance sheet information April 2, December 31, In millions 2023 2022 Accounts and other receivables Trade receivables $ 62.0 $ 56.4 Related parties 0.1 0.1 Prepayments and accrued income 6.5 6.6 Derivative financial instruments 0.1 0.7 Other receivables 5.5 4.0 Total accounts and other receivables $ 74.2 $ 67.8 Inventories Raw materials and supplies $ 55.9 $ 42.7 Work-in-process 44.3 44.0 Finished goods 29.2 24.4 Total inventories $ 129.4 $ 111.1 Property, plant and equipment, net Land, buildings and leasehold improvements $ 59.7 $ 58.9 Machinery and equipment 258.8 254.9 Construction in progress 11.7 9.8 Total property, plant and equipment 330.2 323.6 Accumulated depreciation and impairment (252.6) (245.9) Total property, plant and equipment, net $ 77.6 $ 77.7 Other current liabilities Restructuring provision $ 3.8 $ 3.7 Short term provision — 0.1 Derivative financial instruments 0.2 0.4 Operating lease liability 5.5 4.7 Advance payments 2.3 2.3 Total other current liabilities $ 11.8 $ 11.2 Other non-current liabilities Contingent liabilities $ 0.5 $ 0.7 Operating lease liability 16.8 18.2 Other non-current liabilities 0.2 0.1 Total other non-current liabilities $ 17.5 $ 19.0

Goodwill and other identifiab_2

Goodwill and other identifiable intangible assets (Tables)	3 Months Ended
	Apr. 02, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Changes in goodwill during the first three months ended April 2, 2023, were as follows: In millions Gas Cylinders Elektron Total At January 1, 2023 $ 25.0 $ 40.6 $ 65.6 Exchange difference 0.6 0.3 0.9 Net balance at April 2, 2023 $ 25.6 $ 40.9 $ 66.5
Schedule of Intangible Assets	Identifiable intangible assets consisted of the following: In millions Customer relationships Technology and trading related Total Cost: At January 1, 2023 $ 15.2 $ 7.4 $ 22.6 Exchange movements — 0.2 0.2 At April 2, 2023 $ 15.2 $ 7.6 $ 22.8 Accumulated amortization: At January 1, 2023 $ 6.1 $ 4.0 $ 10.1 Provided during the period 0.1 0.1 0.2 Exchange movements — 0.1 0.1 At April 2, 2023 $ 6.2 $ 4.2 $ 10.4 Net book values: At January 1, 2023 $ 9.1 $ 3.4 $ 12.5 At April 2, 2023 $ 9.0 $ 3.4 $ 12.4

Debt (Tables)

Debt (Tables)	3 Months Ended
	Apr. 02, 2023
Debt Disclosure [Abstract]
Schedule of Debt	Debt outstanding was as follows: In millions April 2, 2023 December 31, 2022 4.88% Loan Notes due 2023 $ 25.0 $ 25.0 4.94% Loan Notes due 2026 25.0 25.0 Revolving credit facility 42.2 31.9 Unamortized debt issuance costs (0.8) (0.7) Total debt $ 91.4 $ 81.2 Less current portion $ (25.0) $ (25.0) Non-current debt $ 66.4 $ 56.2
Schedule of Maturities of Company's Debt	The maturity profile of the Company's debt, excluding unamortized issuance costs and discounts, is as follows: In millions 2023 2024 2025 2026 Thereafter Total Loan Notes due 2023 25.0 — — — — 25.0 Loan Notes due 2026 — — — 25.0 — 25.0 Revolving credit facility — — — 42.2 — 42.2 Total debt $ 25.0 $ — $ — $ 67.2 $ — $ 92.2

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Apr. 02, 2023
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Results of Discontinued Operations	Results of discontinued operations in the first quarter of 2023 and 2022 were as follows: First Quarter In millions 2023 2022 Net sales $ 2.3 $ 1.7 Cost of goods sold (1.9) (1.6) Gross profit $ 0.4 $ 0.1 Selling, general and administrative expenses (0.3) (0.2) Restructuring charges (0.1) — Operating profit / (loss) $ — $ (0.1) Tax (charge) / credit — — Net profit / (loss) $ — $ (0.1) The assets and liabilities classified as held-for-sale related to discontinued operations were as follows: Held-for-sale assets April 2, December 31, In millions 2023 2022 Inventory 2.4 2.7 Accounts and other receivables 1.6 2.7 Current assets $ 4.0 $ 5.4 Right-of-use-assets 2.6 2.7 Held-for-sale assets $ 6.6 $ 8.1 Held-for-sale liabilities Accounts payable 0.8 0.8 Accrued liabilities 0.4 0.2 Other liabilities 2.9 4.0 Held-for-sale liabilities $ 4.1 $ 5.0

Share Plans (Tables)

Share Plans (Tables)	3 Months Ended
	Apr. 02, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Share-based Compensation Expense	Total share-based compensation expense for the quarters ended April 2, 2023 and March 27, 2022 was as follows: First Quarter In millions 2023 2022 Total share-based compensation charges $ 0.6 $ 0.2
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The following table illustrates the assumptions used in deriving the fair value of share options granted during the First Quarter of 2023 and the year-ended December 31, 2022: First Quarter Year ended December 31, 2023 2022 Dividend yield (%) 2.75 - 3.41 2.75 - 3.41 Expected volatility range (%) 36.11 - 49.43 36.11 - 49.43 Risk-free interest rate (%) 1.28 - 2.99 1.28 - 2.99 Expected life of share options range (years) 0.50 - 4.00 0.50 - 4.00 Forfeiture rate (%) 5.00 5.00 Weighted average exercise price ($) $1.00 $1.00 Model used Black-Scholes & Monte-Carlo Black-Scholes & Monte-Carlo

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	3 Months Ended
	Apr. 02, 2023
Equity [Abstract]
Schedule of Dividends Paid and Proposed	First Quarter In millions 2023 2022 Dividends declared and paid during the year: Interim dividend paid February 4, 2022 ($0.125 per ordinary share) $ — $ 3.4 Interim dividend paid February 1 2023 ($0.130 per ordinary share) 3.5 — Interim dividend declared March 10 2022, and paid May 4, 2022 ($0.130) per ordinary share) — 3.6 $ 3.5 $ 7.0 In millions 2023 2022 Dividends declared and paid after the quarter end (not recognized as a liability at the quarter end): Interim dividend declared April 3 2023, and to be paid May 3, 2023 ($0.130 per ordinary share) 3.5 — $ 3.5 $ —

Segmental Information (Tables)

Segmental Information (Tables)	3 Months Ended
	Apr. 02, 2023
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Financial information by reportable segment for the Quarters ended April 2, 2023, and March 27, 2022, is included in the following summary: Net sales Adjusted EBITDA First Quarter First Quarter In millions 2023 2022 2023 2022 Gas Cylinders segment $ 41.5 $ 42.4 $ 2.5 $ 2.7 Elektron segment 59.8 54.6 8.8 13.4 Consolidated $ 101.3 $ 97.0 $ 11.3 $ 16.1 Depreciation and amortization Restructuring charges First Quarter First Quarter In millions 2023 2022 2023 2022 Gas Cylinders segment $ 1.1 $ 1.4 $ 0.3 $ 1.4 Elektron segment 2.2 2.3 — — Consolidated $ 3.3 $ 3.7 $ 0.3 $ 1.4 13. Segmental Information (continued) Total assets Capital expenditures First Quarter, December 31, First Quarter In millions 2023 2022 2023 2022 Gas Cylinders segment $ 143.3 $ 133.1 $ 0.3 $ 0.2 Elektron segment 234.4 216.4 1.7 0.8 Other 36.8 49.5 — — Discontinued operations $ 6.6 $ 8.1 $ (0.1) $ — Consolidated $ 421.1 $ 407.1 $ 1.9 $ 1.0
Property, Plant and Equipment, Net by Geographic Region	Property, plant and equipment, net First Quarter December 31, In millions 2023 2022 U.S. $ 40.5 $ 41.6 United Kingdom 33.0 32.0 Canada 2.7 2.8 Rest of Europe 1.0 1.0 Asia Pacific 0.4 0.3 $ 77.6 $ 77.7
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	The following table presents a reconciliation of Adjusted EBITDA to net income from continuing operations: First Quarter In millions 2023 2022 Adjusted EBITDA $ 11.3 $ 16.1 Other share-based compensation charges (0.6) (0.2) Depreciation and amortization (3.3) (3.7) Restructuring charges (0.3) (1.4) Acquisition and disposal related costs — (0.2) Defined benefits pension credit (8.9) 0.4 Interest expense, net (1.3) (0.8) Net (loss) / income before income taxes from continuing operations $ (3.1) $ 10.2
Revenue from External Customers and Long-term Assets by Geographic Areas	The following tables present certain geographic information by geographic region for the First Quarter ended April 2, 2023, and March 27, 2022: Net Sales (1) First Quarter 2023 2022 $M Percent $M Percent United States $ 57.7 57.0 % $ 55.3 57.0 % U.K. 5.6 5.5 % 5.4 5.6 % Germany 6.3 6.2 % 4.5 4.6 % France 2.1 2.1 % 3.5 3.6 % Italy 3.3 3.3 % 2.3 2.4 % Top five countries $ 75.0 74.1 % $ 71.0 73.2 % Rest of Europe 7.4 7.3 % 6.0 6.2 % Asia Pacific 14.8 14.6 % 14.6 15.1 % Other (2) 4.1 4.0 % 5.4 5.6 % $ 101.3 $ 97.0 (1) Net sales are based on the geographic destination of sale. (2) Other includes Canada, South America, Latin America and Africa.

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	3 Months Ended
	Apr. 02, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Uncommitted Facilities	Uncommitted Facilities April 2, 2023 December 31, 2022 Facility Drawn Facility Drawn Bond and Guarantees $ 0.6 $ 0.2 $ 0.6 $ 0.2 Letters of Credit 2.0 1.5 2.0 1.5 Overdraft 4.0 — 4.0 — $ 6.6 $ 1.7 $ 6.6 $ 1.7

Earnings per share (Details)

Earnings per share (Details) $ / shares in Units, $ in Millions		3 Months Ended
		Apr. 02, 2023 USD ($) $ / shares shares	Mar. 27, 2022 USD ($) $ / shares shares	Apr. 02, 2023 £ / shares	Dec. 31, 2022 £ / shares
Basic earnings:
Net income from continuing operations | $		$ 0.5	$ 7.7
Net income / (loss) from discontinued operations | $		0	(0.1)
Net income | $		$ 0.5	$ 7.6
Weighted average number of £0.50 ordinary shares:
For basic earnings per share (in shares) | shares		26,921,010	27,490,741
Dilutive effect of potential common stock (in shares) | shares		150,484	205,377
For diluted earnings per share (in shares) | shares		27,071,494	27,696,118
Earnings / (loss) per share using weighted average number of ordinary shares outstanding
Basic earnings per ordinary share for continuing operations (usd per share)	[1]	$ 0.02	$ 0.28
Basic (loss)/earnings per ordinary share for discontinued operations (usd per share)	[1],[2]	0	0
Basic (usd per share)	[1]	0.02	0.28
Diluted earnings per ordinary share for continuing operations (usd per share)	[1]	0.02	0.28
Diluted (loss)/earnings per ordinary share for discontinued operations (usd per share)	[1],[2]	0	0
Diluted (usd per share)	[1]	0.02	0.28
Ordinary shares
Basic earnings:
Common stock, par value (in GBP per share) | (per share)		$ 0.50	$ 0.50	£ 0.50	£ 0.50
[1]The calculation of earnings per share is performed separately for continuing and discontinued operations. As a result, the sum of the two in any particular period may not equal the earnings-per-share amount in total.[2] The loss per share for discontinued operations in the First Quarter of 2022 has not been diluted, since the incremental shares included in the weighted-average number of shares outstanding would have been anti-dilutive.

Net Sales - Disaggregation of R

Net Sales - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 101.3	$ 97
General industrial
Disaggregation of Revenue [Line Items]
Net sales	32.4	35.3
Transportation
Disaggregation of Revenue [Line Items]
Net sales	26.7	29.8
Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	42.2	31.9
Gas Cylinders
Disaggregation of Revenue [Line Items]
Net sales	41.5	42.4
Gas Cylinders | General industrial
Disaggregation of Revenue [Line Items]
Net sales	9.5	8.4
Gas Cylinders | Transportation
Disaggregation of Revenue [Line Items]
Net sales	13.9	16.9
Gas Cylinders | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	18.1	17.1
Elektron
Disaggregation of Revenue [Line Items]
Net sales	59.8	54.6
Elektron | General industrial
Disaggregation of Revenue [Line Items]
Net sales	22.9	26.9
Elektron | Transportation
Disaggregation of Revenue [Line Items]
Net sales	12.8	12.9
Elektron | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	$ 24.1	$ 14.8

Restructuring - Additional Info

Restructuring - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 0.3	$ 1.4

Restructuring - Charges (Detail

Restructuring - Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 0.3	$ 1.4
Other restructuring
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	0.3	1.4
Gas Cylinders | Other restructuring
Restructuring Cost and Reserve [Line Items]
Severance and related costs	0.3	1.4
Elektron | Other restructuring
Restructuring Cost and Reserve [Line Items]
Severance and related costs	$ 0	$ 0

Restructuring - Reserve (Detail

Restructuring - Reserve (Details) $ in Millions	3 Months Ended
	Apr. 02, 2023 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 3.7
Costs incurred	0.3
Cash payments and other	(0.2)
Ending balance	$ 3.8

Acquisition and disposal rela_2

Acquisition and disposal related costs - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Business Combinations [Abstract]
Acquisition and disposal related costs	$ 0	$ (0.2)

Supplementary balance sheet i_3

Supplementary balance sheet information - Schedule of Condensed Balance Sheet (Details) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Accounts and other receivables
Trade receivables	$ 62	$ 56.4
Related parties	0.1	0.1
Prepayments and accrued income	6.5	6.6
Derivative financial instruments	0.1	0.7
Other receivables	5.5	4
Total accounts and other receivables	74.2	67.8
Inventories
Raw materials and supplies	55.9	42.7
Work-in-process	44.3	44
Finished goods	29.2	24.4
Total inventories	129.4	111.1
Property, plant and equipment, net
Total property, plant and equipment	330.2	323.6
Accumulated depreciation and impairment	(252.6)	(245.9)
Total property, plant and equipment, net	77.6	77.7
Other current liabilities
Restructuring provision	3.8	3.7
Short term provision	0	0.1
Derivative financial instruments	0.2	0.4
Operating lease liability	5.5	4.7
Advance payments	2.3	2.3
Total other current liabilities	$ 11.8	$ 11.2
Operating lease, liability, current, statement of financial position [extensible enumeration]	Total other current liabilities	Total other current liabilities
Other non-current liabilities
Contingent liabilities	$ 0.5	$ 0.7
Operating lease liability	16.8	18.2
Other non-current liabilities	0.2	0.1
Total other non-current liabilities	$ 17.5	$ 19
Operating lease, liability, noncurrent, statement of financial position [extensible enumeration]	Total other non-current liabilities	Total other non-current liabilities
Land, buildings and leasehold improvements
Property, plant and equipment, net
Total property, plant and equipment	$ 59.7	$ 58.9
Machinery and equipment
Property, plant and equipment, net
Total property, plant and equipment	258.8	254.9
Construction in progress
Property, plant and equipment, net
Total property, plant and equipment	$ 11.7	$ 9.8

Goodwill and other identifiab_3

Goodwill and other identifiable intangible assets - Schedule of Goodwill (Details) $ in Millions	3 Months Ended
	Apr. 02, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 65.6
Exchange difference	0.9
Ending balance	66.5
Gas Cylinders
Goodwill [Roll Forward]
Beginning balance	25
Exchange difference	0.6
Ending balance	25.6
Elektron
Goodwill [Roll Forward]
Beginning balance	40.6
Exchange difference	0.3
Ending balance	$ 40.9

Goodwill and other identifiab_4

Goodwill and other identifiable intangible assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Accumulated goodwill impairment losses	$ 8		$ 8
Amortization of intangible assets	$ 0.2	$ 0.2
Useful life	5 years
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
Amortization, remainder of fiscal year	$ 0.7
Amortization, year one	0.7
Amortization, year two	0.7
Amortization, year three	0.7
Amortization, year four	$ 0.7

Goodwill and other identifiab_5

Goodwill and other identifiable intangible assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022	Dec. 31, 2022
Cost:
At period start	$ 22.6
Exchange movements	0.2
At period end	22.8
Accumulated amortization:
Accumulated amortization, beginning balance	10.1
Amortization of purchased intangible assets	0.2	$ 0.2
Exchange movements	0.1
Accumulated amortization, ending balance	10.4
Net book values:	12.4		$ 12.5
Customer relationships
Cost:
At period start	15.2
Exchange movements	0
At period end	15.2
Accumulated amortization:
Accumulated amortization, beginning balance	6.1
Amortization of purchased intangible assets	0.1
Exchange movements	0
Accumulated amortization, ending balance	6.2
Net book values:	9		9.1
Technology and trading related
Cost:
At period start	7.4
Exchange movements	0.2
At period end	7.6
Accumulated amortization:
Accumulated amortization, beginning balance	4
Amortization of purchased intangible assets	0.1
Exchange movements	0.1
Accumulated amortization, ending balance	4.2
Net book values:	$ 3.4		$ 3.4

Debt - Schedule of Debt Outstan

Debt - Schedule of Debt Outstanding (Details) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ (0.8)	$ (0.7)
Total debt	91.4	81.2
Less current portion	(25)	(25)
Non-current debt	66.4	56.2
Revolving credit facility
Debt Instrument [Line Items]
Long-term debt, gross	42.2	31.9
Loan Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 92.2
Loan Notes | 4.88% Loan Notes due 2023
Debt Instrument [Line Items]
Debt stated interest rate	4.88%
Long-term debt, gross	$ 25	25
Loan Notes | 4.94% Loan Notes due 2026
Debt Instrument [Line Items]
Debt stated interest rate	4.94%
Long-term debt, gross	$ 25	$ 25

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Amount drew down during the period, on line of credit	$ 9.9
Revolving credit facility
Debt Instrument [Line Items]
Debt, weighted average interest rate	6%	3.80%
Long-term debt, gross	$ 42.2	$ 31.9
Borrowing capacity	$ 82.8

Debt - Schedule of Maturities o

Debt - Schedule of Maturities of Company's Debt (Details) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Revolving credit facility
Debt Instrument [Line Items]
2023	$ 0
2024	0
2025	0
2026	42.2
Thereafter	0
Total	42.2	$ 31.9
Committed banking facilities
Debt Instrument [Line Items]
Total	42.2	10.8
Loan Notes
Debt Instrument [Line Items]
2023	25
2024	0
2025	0
2026	67.2
Thereafter	0
Total	92.2
4.88% Loan Notes due 2023 | Loan Notes
Debt Instrument [Line Items]
2023	25
2024	0
2025	0
2026	0
Thereafter	0
Total	25	25
4.94% Loan Notes due 2026 | Loan Notes
Debt Instrument [Line Items]
2023	0
2024	0
2025	0
2026	25
Thereafter	0
Total	$ 25	$ 25

Discontinued Operations - Resul

Discontinued Operations - Results of Discontinued Operations (Details) - Discontinued Operations, Held-for-sale - Superform Aluminum Superplastic - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 2.3	$ 1.7
Cost of goods sold	(1.9)	(1.6)
Gross profit	0.4	0.1
Selling, general and administrative expenses	(0.3)	(0.2)
Restructuring charges	(0.1)	0
Operating profit / (loss)	0	(0.1)
Tax (charge) / credit	0	0
Net profit / (loss)	$ 0	$ (0.1)

Discontinued Operations - Addit

Discontinued Operations - Additional Information (Details) $ in Millions	Apr. 02, 2023 USD ($)
Held-for-sale | Building | Elektron
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of property disposed	$ 1.2

Discontinued Operations - Asset

Discontinued Operations - Assets and Liabilities (Details) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Current assets	$ 7.8	$ 9.3
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Held-for-sale liabilities	4.1	5
Discontinued operations | Superform Aluminum Superplastic
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Inventory	2.4	2.7
Accounts and other receivables	1.6	2.7
Current assets	4	5.4
Right-of-use-assets	2.6	2.7
Held-for-sale assets	6.6	8.1
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Accounts payable	0.8	0.8
Accrued liabilities	0.4	0.2
Other liabilities	2.9	4
Held-for-sale liabilities	$ 4.1	$ 5

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details)	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Income Tax Disclosure [Abstract]
Effective income tax rate	116%	24.50%

Share Plans - Schedule of Share

Share Plans - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Share-Based Payment Arrangement [Abstract]
Total share-based compensation charges	$ 0.6	$ 0.2

Share Plans - Additional Inform

Share Plans - Additional Information (Details)	1 Months Ended
	Mar. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted during the period (in shares)	10,000
Tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	50%
Tranche two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	50%
Luxfer Holdings PLC Long-Term Umbrella Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted during the period (in shares)	126,600
Weighted average fair value of options granted (in USD per share) | $ / shares	$ 17.94

Share Plans - Share Options Fai

Share Plans - Share Options Fair Value Assumptions (Details) - $ / shares	3 Months Ended	12 Months Ended
	Apr. 02, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility range (%), minimum	36.11%	36.11%
Expected volatility range (%), maximum	49.43%	49.43%
Risk-free interest rate (%), minimum	1.28%	1.28%
Risk-free interest rate (%), maximum	2.99%	2.99%
Forfeiture rate (%)	5%	5%
Weighted average exercise price (in USD per share)	$ 1	$ 1
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (%)	2.75%	2.75%
Expected life of share options range (years)	6 months	6 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (%)	3.41%	3.41%
Expected life of share options range (years)	4 years	4 years

Shareholders' Equity - Schedule

Shareholders' Equity - Schedule of Dividend Paid and Proposed (Details) - USD ($) $ / shares in Units, $ in Millions					3 Months Ended
	May 03, 2023	Feb. 01, 2023	May 04, 2022	Feb. 04, 2022	Apr. 02, 2023	Mar. 27, 2022
Class of Stock [Line Items]
Dividends paid (in USD per share)		$ 0.130	$ 0.130	$ 0.125
Dividends paid		$ 3.5		$ 3.4	$ 3.5	$ 3.4
Dividends payable						3.6
Dividends						$ 7
Subsequent Event
Class of Stock [Line Items]
Dividends paid (in USD per share)	$ 0.130
Dividends paid	$ 3.5

Segmental Information - Additio

Segmental Information - Additional Information (Details)	3 Months Ended
	Apr. 02, 2023 segment division
Segment Reporting [Abstract]
Number of operating segments | segment	2
Number of operating divisions	4
Number of reportable segments	2

Segmental Information - Financi

Segmental Information - Financial Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 101.3	$ 97
Adjusted EBITDA	11.3	16.1
Depreciation and amortization	3.3	3.7
Restructuring charges	0.3	1.4
Total assets	421.1		$ 407.1
Capital expenditures	1.9	1
Discontinued operations
Segment Reporting Information [Line Items]
Total assets	6.6		8.1
Capital expenditures	(0.1)	0
Gas Cylinders
Segment Reporting Information [Line Items]
Net sales	41.5	42.4
Elektron
Segment Reporting Information [Line Items]
Net sales	59.8	54.6
Operating Segments | Gas Cylinders
Segment Reporting Information [Line Items]
Net sales	41.5	42.4
Adjusted EBITDA	2.5	2.7
Depreciation and amortization	1.1	1.4
Restructuring charges	0.3	1.4
Total assets	143.3		133.1
Capital expenditures	0.3	0.2
Operating Segments | Elektron
Segment Reporting Information [Line Items]
Net sales	59.8	54.6
Adjusted EBITDA	8.8	13.4
Depreciation and amortization	2.2	2.3
Restructuring charges	0	0
Total assets	234.4		216.4
Capital expenditures	1.7	0.8
Other
Segment Reporting Information [Line Items]
Total assets	36.8		$ 49.5
Capital expenditures	$ 0	$ 0

Segmental Information - Geograp

Segmental Information - Geographic Information by Region (Details) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	$ 77.6	$ 77.7
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	40.5	41.6
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	33	32
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	2.7	2.8
Rest of Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	1	1
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	$ 0.4	$ 0.3

Segmental Information - Reconci

Segmental Information - Reconciliation of Consolidated Segment Income (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Segment Reporting [Abstract]
Adjusted EBITDA	$ 11.3	$ 16.1
Other share-based compensation charges	(0.6)	(0.2)
Depreciation and amortization	(3.3)	(3.7)
Restructuring charges	(0.3)	(1.4)
Acquisition and disposal related costs	0	(0.2)
Defined benefits pension credit	(8.9)	0.4
Interest expense, net	(1.3)	(0.8)
Net (loss) / income before income taxes from continuing operations	$ (3.1)	$ 10.2

Segmental Information - Geogr_2

Segmental Information - Geographic Information by Region (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Mar. 27, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 101.3	$ 97
Top five countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 75	$ 71
Top five countries | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	74.10%	73.20%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 57.7	$ 55.3
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	57%	57%
U.K.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 5.6	$ 5.4
U.K. | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	5.50%	5.60%
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 6.3	$ 4.5
Germany | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	6.20%	4.60%
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 2.1	$ 3.5
France | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	2.10%	3.60%
Italy
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 3.3	$ 2.3
Italy | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	3.30%	2.40%
Rest of Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 7.4	$ 6
Rest of Europe | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	7.30%	6.20%
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 14.8	$ 14.6
Asia Pacific | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	14.60%	15.10%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 4.1	$ 5.4
Other | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	4%	5.60%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) $ in Millions	1 Months Ended
	Nov. 30, 2018 lawsuit fatality	Apr. 02, 2023 USD ($)	Dec. 31, 2022 USD ($)
Loss Contingencies [Line Items]
Number of fatalities | fatality	1
Number of lawsuits | lawsuit	3
Revolving credit facility
Loss Contingencies [Line Items]
Long-term debt, gross		$ 42.2	$ 31.9
Uncommitted accordion facility		25	50
Overdraft
Loss Contingencies [Line Items]
Debt maximum borrowing capacity		4	4
Long-term debt, gross		0	0
Committed banking facilities
Loss Contingencies [Line Items]
Debt maximum borrowing capacity		125	100
Bond and Guarantees
Loss Contingencies [Line Items]
Debt maximum borrowing capacity		0.6	0.6
Long-term debt, gross		0.2	0.2
Letters of Credit
Loss Contingencies [Line Items]
Debt maximum borrowing capacity		2	2
Long-term debt, gross		$ 1.5	$ 1.5

Commitment and Contingencies -

Commitment and Contingencies - Schedule of Uncommitted Facilities (Details) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Overdraft
Other Commitments [Line Items]
Debt maximum borrowing capacity	$ 4	$ 4
Long-term debt, gross	0	0
Bond and Guarantees
Other Commitments [Line Items]
Debt maximum borrowing capacity	0.6	0.6
Long-term debt, gross	0.2	0.2
Letters of Credit
Other Commitments [Line Items]
Debt maximum borrowing capacity	2	2
Long-term debt, gross	1.5	1.5
Bonding facility for bank guarantees, letter of credit and bank overdrafts
Other Commitments [Line Items]
Debt maximum borrowing capacity	6.6	6.6
Long-term debt, gross	$ 1.7	$ 1.7

Pension Settlement - Additional

Pension Settlement - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Apr. 02, 2023	Dec. 31, 2022
U.S. / other
Defined Benefit Plan Disclosure [Line Items]
Pension charge	$ 9.2
Pension charge, cash	2.3
Derecognition of pension liability	6.9
U.K.
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service credit	$ (0.3)	$ (0.4)