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RATIONALIZATION AND ASSET IMPAIRMENTS (Summary of Activity Related to Rationalization Liabilities by Segment) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Activity related to the rationalization liabilities by segment |  |  |
Balance at the beginning of the period | $ 3,276 us-gaap_RestructuringReserve | $ 3,057 us-gaap_RestructuringReserve |
Payments and other adjustments | (4,212)us-gaap_PaymentsForRestructuring | (3,439)us-gaap_PaymentsForRestructuring |
Charged to expense | 1,241 us-gaap_RestructuringCharges | 3,658 us-gaap_RestructuringCharges |
Balance at the end of the period | 305 us-gaap_RestructuringReserve | 3,276 us-gaap_RestructuringReserve |
North America Welding |  |  |
Activity related to the rationalization liabilities by segment |  |  |
Balance at the beginning of the period | 466 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember | 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember |
Payments and other adjustments | (398)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember | (586)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember |
Charged to expense | (68)us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember | 1,052 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember | 827 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember
Balance at the end of the period | 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember | 466 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember | 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_NorthAmericaWeldingMember
Europe Welding |  |  |
Activity related to the rationalization liabilities by segment |  |  |
Balance at the beginning of the period | 2,435 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember | 2,013 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember |
Payments and other adjustments | (3,041)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember | (1,343)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember |
Charged to expense | 911 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember | 1,765 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember | 3,637 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember
Balance at the end of the period | 305 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember | 2,435 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember | 2,013 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_EuropeWeldingMember
Asia Pacific Welding |  |  |
Activity related to the rationalization liabilities by segment |  |  |
Balance at the beginning of the period | 375 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember | 1,044 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember |
Payments and other adjustments | (191)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember | (1,510)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember |
Charged to expense | (184)us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember | 841 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember | 3,151 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember
Balance at the end of the period | 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember | 375 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember | 1,044 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_AsiaPacificWeldingMember
South America Welding [Member] |  |  |
Activity related to the rationalization liabilities by segment |  |  |
Balance at the beginning of the period | 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember | 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember |
Payments and other adjustments | (582)us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember | 0 us-gaap_PaymentsForRestructuring / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember |
Charged to expense | 582 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember |
Balance at the end of the period | $ 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember | $ 0 us-gaap_RestructuringReserve / us-gaap_StatementBusinessSegmentsAxis = leco_SouthAmericaWeldingMember |

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