Allowance For Credit Losses - Activities In Allowance For Credit Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of year	$ 1,477	$ 3,469
Additions (reductions)	86	(76)
Write-offs		(1,845)
Balance at end of period	$ 1,563	$ 1,548