XML 92 R64.htm IDEA: XBRL DOCUMENT v3.20.4
Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt [Line Items]    
Revolving credit agreement $ 0 $ 0
Debt issuance costs $ (27,072) (12,370)
6.50% Notes due 2024    
Debt [Line Items]    
Senior Notes   $ 900,000