Segment Information, Long-Lived Assets by Major Market (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	$ 581,124	$ 632,670	$ 597,930
Major Market [Member] | United States [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	335,020	348,028	354,410
Major Market [Member] | Mainland China [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	149,124	152,312	136,845
Major Market [Member] | South Korea [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	25,364	39,104	35,286
Major Market [Member] | Japan [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	23,929	31,085	12,015
Major Market [Member] | All Others [Member]
Long-Lived Assets by Major Market [Abstract]
Long-lived assets	$ 47,687	$ 62,141	$ 59,374