Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance For Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 1,169	$ 1,382	$ 1,519
Increase	107	50	386
Decrease	234	263	523
Balance at end of year	1,042	1,169	1,382
Tax Valuation Allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	40,894	47,056	33,946
Increase	9,884		13,110
Decrease		6,162
Balance at end of year	$ 50,778	$ 40,894	$ 47,056