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Subsequent Events (Details)
2 Months Ended
Nov. 30, 2018
USD ($)
agreement
Jan. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Subsequent Event [Line Items]      
Debt instrument, face amount     $ 3,105,626,000
Treasury Lock Agreements      
Subsequent Event [Line Items]      
Interest rate lock agreements (in agreements) | agreement 2    
Gain on derivative $ 5,700,000    
Senior Notes | 4.375% Senior Unsecured Notes | Subsequent Event      
Subsequent Event [Line Items]      
Debt instrument, face amount   $ 350,000,000  
Stated interest rate   4.375%