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Debt - $700 Million 4.75% Senior Notes (Details) - Senior Notes [Member] - USD ($)
1 Months Ended
Oct. 31, 2019
Sep. 30, 2019
Dec. 31, 2021
Apr. 03, 2013
$350 Million 5% Senior Notes [Member]        
Debt Instrument [Line Items]        
Face amount   $ 350,000,000 $ 350,000,000 $ 350,000,000.0
Stated interest rate (as a percent)   5.00% 5.00% 5.00%
$200 Million 4.75% Senior Notes        
Debt Instrument [Line Items]        
Face amount $ 200,000,000.0      
Stated interest rate (as a percent) 4.75%      
Net proceeds $ 199,000,000      
Issue price percentage 101.25%      
$500 Million 4.75% Senior Notes        
Debt Instrument [Line Items]        
Face amount $ 500,000,000 $ 500,000,000.0    
Debt instrument, maturity date   Oct. 15, 2027    
Stated interest rate (as a percent) 4.75% 4.75%    
Net proceeds   $ 493,000,000    
$700 Million 4.75% Senior Note [Member]        
Debt Instrument [Line Items]        
Face amount $ 700,000,000 $ 700,000,000 $ 700,000,000  
Stated interest rate (as a percent) 4.75% 4.75% 4.75%  
Redemption date Oct. 15, 2022      
Redemption price (as a percent) 100.00%      
$700 Million 4.75% Senior Note [Member] | Redemption Period One [Member]        
Debt Instrument [Line Items]        
Redemption price (as a percent) 103.563%      
$700 Million 4.75% Senior Note [Member] | Redemption Period Two [Member]        
Debt Instrument [Line Items]        
Redemption price (as a percent) 102.375%      
$700 Million 4.75% Senior Note [Member] | Redemption Period Three [Member]        
Debt Instrument [Line Items]        
Redemption price (as a percent) 101.188%      
$700 Million 4.75% Senior Note [Member] | Redemption Period Four [Member]        
Debt Instrument [Line Items]        
Redemption price (as a percent) 100.00%