Supplemental Financial Statement Information (Allowance for Credit on Losses for Accounts Receivables) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for credit losses
Balance at beginning of year	$ 5,864	$ 29,179	$ 35,344
Amounts charged to expense	8,177	6,421	9,355
Write-offs, recoveries and other	(7,902)	(29,736)	(15,520)
Balance at end of period	6,139	5,864	29,179
Allowance for doubtful accounts	6,139	5,864	29,179
Accounts and other receivables
Allowance for credit losses
Balance at beginning of year	5,344	11,168
Balance at end of period	6,139	5,344	11,168
Allowance for doubtful accounts	6,139	5,344	11,168
Other assets
Allowance for credit losses
Balance at beginning of year	520	18,011
Balance at end of period	0	520	18,011
Allowance for doubtful accounts	$ 0	$ 520	$ 18,011