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Retirement Benefit Plans - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Postretirement Medical Benefits |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Prior service cost | $ 0.0 | $ 0.0 | $ 0.0
Net actuarial (gain) loss | (1.1) | 0.6 | (0.3)
Amortization of net actuarial (loss) gain | 0.0 | 0.0 | 0.0
Total recognized in other comprehensive (income) loss | (1.1) | 0.6 | (0.3)
Total recognized in net benefit (credit) cost and other comprehensive (income) loss | (0.9) | 0.8 | 0.0
UNITED STATES | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Prior service cost | 0.0 | 0.0 | 0.0
Net actuarial (gain) loss | (0.1) | 0.0 | 0.0
Amortization of net actuarial (loss) gain | (0.1) | 0.0 | (0.1)
Total recognized in other comprehensive (income) loss | (0.2) | 0.0 | (0.1)
Total recognized in net benefit (credit) cost and other comprehensive (income) loss | (0.1) | 0.1 | 0.0
Non-U.S. Plan | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Prior service cost | 0.0 | 0.0 | 0.1
Net actuarial (gain) loss | (5.0) | 0.2 | 1.6
Amortization of net actuarial (loss) gain | 0.0 | (0.1) | 0.0
Total recognized in other comprehensive (income) loss | (5.0) | 0.1 | 1.7
Total recognized in net benefit (credit) cost and other comprehensive (income) loss | $ (4.9) | $ 0.0 | $ 1.6

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- Definition Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income and net benefit cost (credit) for defined benefit plan. + References No definition available. + Details
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- Definition Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (j) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580 + Details
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