Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance For Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 1,042	$ 1,169	$ 1,382
Increase	97	107	50
Decrease	787	234	263
Balance at end of year	352	1,042	1,169
Tax Valuation Allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	50,778	40,894	47,056
Increase	8,309	9,884
Decrease			6,162
Balance at end of year	$ 59,087	$ 50,778	$ 40,894