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LONG-TERM DEBT - SCHEDULE OF LONG-TERM DEBT (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
May 16, 2016
Dec. 31, 2015
Jun. 11, 2015
Debt Instrument [Line Items]        
Long-term debt, gross $ 1,880,036   $ 1,648,707  
Other 71,109   75,866  
Less current maturities (19,966)   (247,346)  
Debt issuance costs and discounts (19,124)   (12,947)  
Long-term debt (less current maturities and debt issuance costs and discounts) 1,840,946   1,388,414  
U.S. dollar term loan [Member]        
Debt Instrument [Line Items]        
Long-term debt, gross 0   114,614  
British pound term loan [Member]        
Debt Instrument [Line Items]        
Long-term debt, gross 187,506   235,808  
Euro term loan and revolving credit facility [Member]        
Debt Instrument [Line Items]        
Long-term debt, gross 120,900   114,030  
Canadian dollar revolving credit facility [Member]        
Debt Instrument [Line Items]        
Long-term debt, gross 100,521   108,389  
Unsecured Senior Notes, 4.60% [Member] | Senior notes [Member]        
Debt Instrument [Line Items]        
Long-term debt, gross $ 1,000,000   1,000,000  
Stated interest rate 4.60%     4.60%
Unsecured Senior Notes, 3.75% [Member] | Senior notes [Member]        
Debt Instrument [Line Items]        
Long-term debt, gross $ 400,000   $ 0  
Stated interest rate 3.75% 3.75%