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DERIVATIVE FINANCIAL INSTRUMENTS (Details)
$ in Thousands, € in Millions, ¥ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
EUR (€)
Sep. 30, 2015
JPY (¥)
Dec. 31, 2014
USD ($)
Sep. 30, 2014
EUR (€)
Sep. 30, 2014
JPY (¥)
Dec. 31, 2013
USD ($)
Sep. 30, 2013
USD ($)
Derivative Financial Instruments [Abstract]                      
Revenue $ 571,308 $ 638,800 $ 1,674,849 $ 1,959,888              
Derivative Financial Instruments [Abstract]                      
Accumulated other comprehensive income (loss) (73,000)   (73,000)       $ (51,521)        
Deferred tax assets 27,100   27,100             $ 40,000  
Accumulated Unrealized Gains (Losses) on Foreign Currency Cash Flow Hedges [Member]                      
Derivative Financial Instruments [Abstract]                      
Accumulated other comprehensive income (loss) 100   100       1,100        
Accumulated Unrealized Gains (Losses) on Foreign Currency Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]                      
Derivative Financial Instruments [Abstract]                      
Revenue 0 800 2,100 1,500              
Accumulated Translation Adjustment [Member]                      
Derivative Financial Instruments [Abstract]                      
Accumulated other comprehensive income (loss) (72,900)   (72,900)       $ (52,600)        
Forward Contracts [Member] | Cash Flow Hedges [Member] | Japanese Yen [Member]                      
Derivative Financial Instruments [Abstract]                      
Notional amount 16,700 $ 7,300 16,700 $ 7,300   ¥ 2,000.0     ¥ 800.0    
Forward Contracts [Member] | Cash Flow Hedges [Member] | Euros [Member]                      
Derivative Financial Instruments [Abstract]                      
Notional amount $ 16,800   $ 16,800   € 15.0     € 7.0     $ 8,800