Accounts And Other Receivables (Schedule Of Reconciliation Of The Beginning And Ending Balances Of The Allowance For Doubtful Accounts And Sales Returns) (Details) - Allowance For Doubtful Accounts - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of year	$ 1,162	$ 2,068	$ 1,142
Charges to expense	145	407	1,032
Recoveries	0	0	12
Write-offs and settlements	(1,078)	(1,313)	(118)
Balance, end of year	$ 229	$ 1,162	$ 2,068

Accounts And Other Receivables (Schedule Of Reconciliation Of The Beginning And Ending Balances Of The Allowance For Doubtful Accounts And Sales Returns) (Details) - Allowance For Doubtful Accounts - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2024

Dec. 31, 2023

Dec. 31, 2022

Allowance for Doubtful Accounts Receivable [Roll Forward]

Balance, beginning of year

$ 1,162

$ 2,068

$ 1,142

Charges to expense

145

407