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DEBT (Schedule of Debt) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Long-term debt
Long-term debt	$ 9,499leco_DebtAndCapitalLeaseObligationsExcludingShortTermBorrowings	$ 4,506leco_DebtAndCapitalLeaseObligationsExcludingShortTermBorrowings
Less current portion	7,011us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent	715us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
Long-term debt, less current portion	2,488us-gaap_LongTermDebtAndCapitalLeaseObligations	3,791us-gaap_LongTermDebtAndCapitalLeaseObligations
Short-term debt
Amounts due banks, interest at 3.1% (11.3% in 2013)	61,155us-gaap_ShortTermBankLoansAndNotesPayable	14,581us-gaap_ShortTermBankLoansAndNotesPayable
Current portion of long-term debt	7,011us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent	715us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
Total short-term debt	68,166us-gaap_DebtCurrent	15,296us-gaap_DebtCurrent
Total debt	70,654us-gaap_DebtAndCapitalLeaseObligations	19,087us-gaap_DebtAndCapitalLeaseObligations
Capital leases due through 2019, interest at 0.3% to 8.0%
Long-term debt
Long-term Debt and Capital Lease Obligations, Including Current Maturities	198us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember	236us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember
Short-term debt
Interest rate, low end of range (as a percent)	0.30%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember
Interest rate, high end of range (as a percent)	8.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember
Other borrowings due through 2023, interest up to 18.0%
Long-term debt
Long-term debt	$ 9,301leco_DebtAndCapitalLeaseObligationsExcludingShortTermBorrowings / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember	$ 4,270leco_DebtAndCapitalLeaseObligationsExcludingShortTermBorrowings / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Short-term debt
Interest rate, high end of range (as a percent)	18.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember

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Sum of the carrying values as of the balance sheet date of long-term debt, and capital lease obligations.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Maximum contractual interest rate for funds borrowed, under the debt agreement.

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