Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014
Document and Entity Information
Entity Registrant Name	LINCOLN ELECTRIC HOLDINGS INC
Entity Central Index Key	0000059527
Document Type	10-K
Document Period End Date	Dec. 31, 2014
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 5,428,273,439
Entity Common Stock, Shares Outstanding	76,997,161
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY