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v3.25.4

FAIR VALUE - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 USD ($)
FAIR VALUE |
Transfers between fair value levels for assets and liabilities | $ 0

X
- Definition Represents the amount transferred between all fair value levels for assets or liabilities. + References No definition available. + Details
Name: | leco_FairValueTransfersBetweenLevelsAssetsOrLiabilities
Namespace Prefix: | leco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration