Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accumulated other comprehensive income
Foreign currency translation loss	$ (84,717)	$ (85,863)
Changes in defined benefit plan liabilities	(5,369)	(5,774)
Unrealized losses on investments	(424)	0
Total accumulated other comprehensive loss	$ (90,510)	$ (91,637)