Supplemental Financial Statement Information (Allowance for Credit on Losses for Accounts and Other Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of year	$ 5,864	$ 29,179
Amounts charged to expense	2,523	921
Write-offs, recoveries and other	(2,304)	(19,519)
Balance at end of period	6,083	10,581
Allowance for doubtful accounts	6,083	10,581
Accounts and other receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at end of period	6,083	10,061
Allowance for doubtful accounts	6,083	10,061
Other assets
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at end of period	0	520
Allowance for doubtful accounts	$ 0	$ 520