Long-Term Incentive Compensation (Summary of Equity-Classified Stock Option Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Number of Options, Outstanding at January 1 (in shares)	997	3,006	3,850
Number of options, granted (in shares)	0	0	0
Number of Options, Exercised (in shares)	0	(893)	0
Number of Options, Forfeited or expired (in shares)	(177)	(1,116)	(844)
Number of Options, Outstanding at December 31 (in shares)	820	997	3,006
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding at January 1 (in dollars per share)	$ 8.59	$ 8.98	$ 13.39
Weighted Average Exercise Price, Granted (in dollars per share)	0	0	0
Weighted Average Exercise Price, Exercised (in dollars per share)	0	7.80	0
Weighted Average Exercise Price, Forfeited or expired (in dollars per share)	8.60	10.26	29.10
Weighted Average Exercise Price, Outstanding at December 31 (in dollars per share)	$ 8.59	$ 8.59	$ 8.98
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Options exercisable, Number of options (in shares)	820
Options exercisable, Weighted average exercise price per share (in dollars per share)	$ 8.59
Options exercisable - weighted average remaining contractual life (in years)	1 year 1 month 6 days