Name:	leco_DefinedContributionPlanEmployeeContributionPercentageMinimum
Namespace Prefix:	leco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the first level of employee contributions (percentage of compensation) which are matched by the employer.

No definition available.

Name:	leco_DefinedContributionPlanEmployerMatchEmployeeContributionLevelOne
Namespace Prefix:	leco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the employer matching contribution of the first level of employee contributions.

No definition available.

Name:	leco_DefinedContributionPlanEmployerMatchLevelOne
Namespace Prefix:	leco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the employer additional matching contributions to a defined contribution plan for participants employer after certain date.

No definition available.

Name:	leco_DefinedContributionPlanEmployersAdditionalAnnualMatch
Namespace Prefix:	leco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of the cost recognized during the period for defined contribution plans.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.