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Debt - Senior Notes (Details)
Jan. 15, 2016
USD ($)
Jun. 09, 2015
USD ($)
Jan. 31, 2013
USD ($)
Jul. 01, 2017
Jun. 09, 2015
EUR (€)
Dec. 31, 2014
USD ($)
Jan. 17, 2006
USD ($)
2.00% Senior Notes due January 14, 2022              
Debt Instrument [Line Items]              
Aggregate principal amount of debts | €         € 500,000,000    
Interest rate percentage       2.00% 2.00%    
Payment of financing costs   $ 4,218,000          
3.85% Senior Notes due February 1, 2023              
Debt Instrument [Line Items]              
Aggregate principal amount of debts     $ 600,000,000        
Interest rate percentage     3.85% 3.85%      
Payment of financing costs     $ 6,000,000        
6.125% Senior Notes Payable January 14, 2022              
Debt Instrument [Line Items]              
Aggregate principal amount of debts             $ 900,000,000
Interest rate percentage             6.125%
Aggregate principal amount           $ 254,445,000  
Repayment of outstanding principal $ 645,555,000