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RATIONALIZATION AND ASSET IMPAIRMENTS (Summary of Activity Related to Rationalization Liabilities by Segment) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Rationalization and Asset Impairments      
Balance at the beginning of the period   $ 3,057  
Payments for Restructuring   (2,628)  
Charged to expense   3,479  
Balance at the end of the period   3,908  
North America Welding
      
Rationalization and Asset Impairments      
Balance at the beginning of the period   0  
Payments for Restructuring   (495)  
Charged to expense   1,109  
Balance at the end of the period   614  
Europe Welding
      
Rationalization and Asset Impairments      
Balance at the beginning of the period   2,013  
Payments for Restructuring   (846)  
Charged to expense 1,914 1,666 2,506
Balance at the end of the period   2,833  
Asia Pacific Welding
      
Rationalization and Asset Impairments      
Balance at the beginning of the period   1,044  
Payments for Restructuring   (1,287)  
Charged to expense 311 704 900
Balance at the end of the period   $ 461