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Long-Term Debt - Senior Notes, Additional Information (Details) - Senior Notes - USD ($)
Apr. 30, 2021
Oct. 31, 2020
Oct. 16, 2020
Dec. 14, 2017
Sep. 30, 2023
Nov. 30, 2020
Senior notes, interest at 4.125%, payable semi-annually, principal due April 2031            
Debt Instrument [Line Items]            
Debt, aggregate principal amount $ 400,000,000          
Debt instrument, interest rate 4.125%       4.125%  
Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030            
Debt Instrument [Line Items]            
Debt, aggregate principal amount   $ 500,000,000 $ 500,000,000      
Debt instrument, interest rate   4.125% 4.125%   4.125%  
Debt issuance costs $ 6,000,000   $ 8,000,000      
Redemption percentage 40.00%          
Debt redemption price percentage 104.125%          
Percentage of purchase price equal   100.00%        
Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030 | Redemption Period, One            
Debt Instrument [Line Items]            
Debt redemption price percentage 102.063% 102.063%        
Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030 | Redemption Period, Two            
Debt Instrument [Line Items]            
Debt redemption price percentage 101.375% 101.375%        
Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030 | Redemption Period, Three            
Debt Instrument [Line Items]            
Debt redemption price percentage 100.688% 100.688%        
Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030 | Redemption Period, Four            
Debt Instrument [Line Items]            
Debt redemption price percentage 100.00% 100.00%        
Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030 | Upon Change Of Control            
Debt Instrument [Line Items]            
Debt redemption price percentage 101.00%     101.00%    
Senior notes interest at 6.125% payable semi-annually, principal due November 2023            
Debt Instrument [Line Items]            
Debt instrument, interest rate           6.125%
Senior notes interest at 6.125% payable semi-annually, principal due November 2023 | Redemption Period, Two            
Debt Instrument [Line Items]            
Debt instrument, interest rate           101.531%
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028            
Debt Instrument [Line Items]            
Debt, aggregate principal amount       $ 300,000,000    
Debt instrument, interest rate       5.125% 5.125%  
Debt issuance costs       $ 4,800,000    
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption Period, Two            
Debt Instrument [Line Items]            
Debt redemption price percentage       102.563%    
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption Period, Three            
Debt Instrument [Line Items]            
Debt redemption price percentage       101.708%    
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Redemption Period, Four            
Debt Instrument [Line Items]            
Debt redemption price percentage       100.854%    
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Upon Change Of Control            
Debt Instrument [Line Items]            
Debt redemption price percentage       101.00%    
Senior notes, interest at 5.125%, payable semi-annually, principal due February 2028 | Debt Instrument, Redemption, Period Five            
Debt Instrument [Line Items]            
Debt redemption price percentage       100.00%