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Summary of Significant Accounting Policies - Commitments and contingencies (Details) | 1 Months Ended
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Nov. 30, 2018 lawsuit fatality
Accounting Policies [Abstract] |
Number of fatality | fatality | 1
Number of lawsuits | lawsuit | 3

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- Definition Number of Fatality + References No definition available. + Details
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- Definition Number of Lawsuits + References No definition available. + Details
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Namespace Prefix: | lxfr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Period Type: | duration