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Long-Term Debt - Additional Information (Details)
$ in Thousands, € in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Mar. 31, 2017
EUR (€)
Mar. 31, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Dec. 31, 2016
Debt Instrument [Line Items]              
Repayments of long-term debt         $ 751,209 $ 382,162  
Payments of debt premium     $ 45,200        
Loss on early extinguishment of debt         52,801 0  
Net investment hedge gain (loss) $ (14,234)     $ 6,607 $ (27,919) $ (2,917)  
3.00% Senior Notes              
Debt Instrument [Line Items]              
Debt instrument, interest rate 3.00% 3.00% 3.00%   3.00%   3.00%
1.875% Senior Notes              
Debt Instrument [Line Items]              
Debt instrument, interest rate 1.875% 1.875% 1.875%   1.875%   1.875%
4.50% Senior Notes              
Debt Instrument [Line Items]              
Debt instrument, interest rate 4.50% 4.50% 4.50%   4.50%   4.50%
Commercial Paper              
Debt Instrument [Line Items]              
Weighted average interest rate 1.71%       1.71%    
Debt instrument maturity period         28 days    
Senior Notes | 3.00% Senior Notes              
Debt Instrument [Line Items]              
Repayments of long-term debt     $ 250,000        
Senior Notes | 1.875% Senior Notes              
Debt Instrument [Line Items]              
Repayments of long-term debt | €   € 307.0          
Senior Notes | 4.50% Senior Notes              
Debt Instrument [Line Items]              
Repayments of long-term debt     $ 174,700