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SIGNIFICANT ACCOUNTING POLICIES (Textual) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Basis of Presentation [Line Items]            
Percentage Net Sales Over Time       10.00%    
Operating Income (Loss)       $ 370,910 $ 375,539 $ 376,942
Selling, general & administrative expenses       621,489 627,697 541,225
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment $ (1,696) $ (4,232) $ (758)      
Income Tax Reconciliation Excess Tax Benefits Stock Options       $ 3,451 $ 1,094 $ 6,276
Percentage of LIFO Inventory 37.00%     36.00% 37.00% 32.00%
Maximum period for which derivative contracts cover currency and commodity exposures (in years)       3 years    
Product Warranties            
Period of warranty services (in years)       3 years    
Stock-Based Compensation            
Anti-dilutive shares excluded from the calculation of diluted earnings per share (in shares)       524,110 324,688 157,033
Research and Development            
Research and development costs       $ 56,845 $ 54,168 $ 47,899
Bonus            
Costs related to the Company's discretionary employee bonus programs       100,381 123,799 $ 97,392
Inventories            
Inventory Valuation Reserves $ 24,502     24,088 24,502  
Prepaid Expense, Current [Abstract]            
Prepaid Expense, Current $ 17,078     $ 17,437 $ 17,078