XML 94 R79.htm IDEA: XBRL DOCUMENT v3.20.4
Debt - Summary of Debt (Parenthetical) (Details) - Senior Notes
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Sep. 25, 2014
Mar. 19, 2013
6.00% Senior Notes due 2026        
Line Of Credit Facility [Line Items]        
Stated interest rate 6.00% 6.00%    
Debt instrument maturity year 2026 2026    
5.875% Senior Notes due 2024        
Line Of Credit Facility [Line Items]        
Stated interest rate 5.875% 5.875% 5.875%  
Debt instrument maturity year 2024 2024    
5.125% Senior Notes due 2023        
Line Of Credit Facility [Line Items]        
Stated interest rate 5.125% 5.125%   5.125%
Debt instrument maturity year 2023 2023    
5.875% Senior Notes due 2022        
Line Of Credit Facility [Line Items]        
Stated interest rate 5.875% 5.875%    
Debt instrument maturity year 2022 2022