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Subsequent Events (Details) - USD ($)
1 Months Ended
Oct. 07, 2020
Oct. 28, 2020
Nov. 16, 2020
Sep. 30, 2020
Dec. 31, 2019
Oct. 31, 2019
Nov. 08, 2017
Jul. 23, 2014
Senior Notes                
Subsequent Event [Line Items]                
Aggregate principal amount             $ 400,000,000.0  
Interest rate       4.75%     4.75% 5.875%
Percentage of issued price equal to face value             100.00%  
Debt issuance costs, net       $ 3,900,000        
Outstanding debt       400,000,000 $ 400,000,000      
Unsecured Credit Facility                
Subsequent Event [Line Items]                
Outstanding debt       $ 1,223,000,000.0        
Credit facility maximum borrowing capacity           $ 1,700,000,000    
Subsequent Event | Senior Notes due 2028                
Subsequent Event [Line Items]                
Aggregate principal amount $ 500,000,000              
Interest rate 3.875%              
Percentage of issued price equal to face value 100.00%              
Subsequent Event | Senior Notes                
Subsequent Event [Line Items]                
Interest rate 4.75%              
Penalty as percent of average principal amount 3.563%              
Loss on extinguishment of debt $ 14,300,000              
Subsequent Event | Term Loan D                
Subsequent Event [Line Items]                
Current borrowing capacity   $ 250,000,000            
Credit facility maximum borrowing capacity   500,000,000            
Accordion feature   $ 250,000,000            
Subsequent Event | Term Loan D | LIBOR                
Subsequent Event [Line Items]                
Debt instrument spread on variable interest rate   1.20%            
Floor over LIBOR   0.25%            
Subsequent Event | Term Loan D | Plan                
Subsequent Event [Line Items]                
Outstanding debt     $ 250,000,000          
Subsequent Event | Term Loan D, On or Before November 16, 2020                
Subsequent Event [Line Items]                
Current borrowing capacity   $ 250,000,000            
Subsequent Event | Unsecured Credit Facility                
Subsequent Event [Line Items]                
Current borrowing capacity   1,700,000,000            
Credit facility maximum borrowing capacity   $ 1,950,000,000