Accumulated Other Comprehensive Income (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Accumulated Other Comprehensive Income
Balance, beginning	$ 326,204
Balance, ending	277,537
Amounts reclassified from AOCI	0
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income
Balance, beginning	1,260
Other comprehensive gain	812
Balance, ending	2,072
Unrealized Loss on Marketable Securities
Accumulated Other Comprehensive Income
Balance, beginning	(1,336)
Other comprehensive gain	812
Balance, ending	(524)
Foreign Currency Items
Accumulated Other Comprehensive Income
Balance, beginning	2,596
Other comprehensive gain	0
Balance, ending	$ 2,596