XML 161 R142.htm IDEA: XBRL DOCUMENT v3.24.0.1
Condensed Financial Information of Registrant - Statements of Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Condensed Statement of Income Captions [Line Items]      
Net income (loss) $ 728,642 $ 364,189 $ (81,297)
Other comprehensive income:      
Other post-retirement benefits income, net of tax 45 5,627 6,244
Total other comprehensive income, net of tax 45 5,627 6,244
Comprehensive income (loss) 728,687 369,816 (75,053)
Parent Company      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) 728,642 364,189 (81,297)
Other comprehensive income:      
Other post-retirement benefits income, net of tax [1] 45 5,627 6,244
Total other comprehensive income, net of tax [1] 45 5,627 6,244
Comprehensive income (loss) [1] $ 728,687 $ 369,816 $ (75,053)
[1] Other comprehensive income relates to benefit plans at our subsidiaries.