Allowance Accounts - Activities In Allowance For Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for credit losses
Balance at beginning of year	$ 2,277	$ 1,477	$ 3,469
Additions (reductions)	1,149	800	(146)
Write-offs	(19)		(1,846)
Balance at end of year	3,407	2,277	1,477
Deferred tax asset valuation allowance
Balance at beginning of year	22,157	14,047	19,722
Additions (reductions)	51,354
Adjustments	7,604	8,110	(5,675)
Balance at end of year	$ 81,115	$ 22,157	$ 14,047