XML 246 R81.htm IDEA: XBRL DOCUMENT
v3.19.1

Pension Plans - Schedule of Assumptions Used (Details) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
U.K. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discount rate | 2.90% | 2.40% | 2.60%
Expected return on assets | 4.90% | 4.80% | 5.20%
Retail price inflation | 3.30% | 3.10% | 3.20%
Consumer price inflation | 2.20% | 2.10% | 2.20%
Life expectancy of male in the U.K. aged 65 at accounting date | 21 years 5 months | 21 years 7 months |
Life expectancy of female in the U.K. aged 65 at accounting date | 24 years 1 month | 24 years 7 months |
Life expectancy of male in the U.K. aged 65 at 20 years after accounting date | 22 years 9 months | 23 years 3 months |
Life expectancy of female in the U.K. aged 65 at 20 years after accounting date | 25 years 8 months | 26 years 6 months |
U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discount rate | 4.20% | 3.60% | 4.20%
Expected return on assets | 6.20% | 6.00% | 6.30%
Pre 6 April 1997 | U.K. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Rate of pension increases | 2.00% | 1.90% | 2.00%
1997 To 2005 | U.K. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Rate of pension increases | 2.20% | 2.10% | 2.20%
Post 5 April 2005 | U.K. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Rate of pension increases | 1.80% | 1.70% | 1.80%

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation And Net Periodic Benefit Cost, Consumer Price Inflation + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAndNetPeriodicBenefitCostConsumerPriceInflation
Namespace Prefix: | lxfr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation And Net Periodic Benefit Cost, Life Expectancy Of Male Aged 65 At 20 Years After Accounting Date + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAndNetPeriodicBenefitCostLifeExpectancyOfMaleAged65At20YearsAfterAccountingDate
Namespace Prefix: | lxfr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation And Net Periodic Benefit Cost, Life Expectancy Of Male Aged 65 At Accounting Date + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAndNetPeriodicBenefitCostLifeExpectancyOfMaleAged65AtAccountingDate
Namespace Prefix: | lxfr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation And Net Periodic Benefit Cost, Rate Of Pension Increase + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAndNetPeriodicBenefitCostRateOfPensionIncrease
Namespace Prefix: | lxfr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation And Net Periodic Benefit Cost, Retail Price Inflation + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAndNetPeriodicBenefitCostRetailPriceInflation
Namespace Prefix: | lxfr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Life Expectancy Of Female Aged 65 At 20 Years After Accounting Date + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationLifeExpectancyOfFemaleAged65At20YearsAfterAccountingDate
Namespace Prefix: | lxfr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Life Expectancy Of Female Aged 65 At Accounting Date + References No definition available. + Details
Name: | lxfr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationLifeExpectancyOfFemaleAged65AtAccountingDate
Namespace Prefix: | lxfr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lxfr_RateOfPensionIncreasePeriodAxis=lxfr_Pre6April1997Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lxfr_RateOfPensionIncreasePeriodAxis=lxfr_A1997To2005Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lxfr_RateOfPensionIncreasePeriodAxis=lxfr_Post5April2005Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |