Supplemental Financial Statement Information (Allowance for Credit on Losses for Accounts and Other Receivables) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of year	$ 5,864	$ 29,179
Amounts charged to expense	5,703	5,361
Write-offs, recoveries and other	(7,443)	(28,110)
Balance at end of period	4,124	6,430
Allowance for doubtful accounts	4,124	6,430
Accounts and other receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at end of period	4,124	5,910
Allowance for doubtful accounts	4,124	5,910
Other assets
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at end of period	0	520
Allowance for doubtful accounts	$ 0	$ 520