Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets, Net [Abstract]
Deferred tax assets	$ 16.5	$ 15.8
Deferred tax liabilities	(2.0)	(1.9)
Net deferred tax assets	14.5	13.9
Deferred tax assets
Pension benefits	9.9	5.8
Accrued liabilities	0.7	0.9
Tax loss and credit carry forwards	25.8	23.8
Share based compensation	1.9	1.4
Other	1.5	4.7
Total deferred tax assets	39.8	36.6
Valuation allowances	(19.3)	(16.2)
Deferred tax assets, net of valuation allowances	20.5	20.4
Deferred tax liabilities
Property, plant and equipment	1.7	2.4
Goodwill and other intangibles	3.2	2.7
Other	1.1	1.4
Total deferred tax liabilities	$ 6.0	$ 6.5

Deferred Tax Assets, Operating Loss Carryforward And Tax Credit Carryforward

No definition available.

Name:	lxfr_DeferredTaxAssetsOperatingLossCarryforwardAndTaxCreditCarryforward
Namespace Prefix:	lxfr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e31931-109318

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e31917-109318