Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	[1]	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (104,883)	$ (7,660)		$ (8,318)	$ (350,214)	[1]
Effective Income Tax Rate, Percent				(18.34%)	27.28%
Federal Statutory Income Tax Rate, Percent				21.00%
Book-income Alternative Minimum Tax Rate				15.00%

[1] Prior period amounts adjusted for the implementation of ASU 2018-12: Targeted Improvements to the Accounting for Long-Duration Contracts.