Bank Credit Agreements and Other Short-Term and Long-Term Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total long-term debt	$ 284,959	$ 312,247
Less: Current portion of long-term debt	(17,381)	(21,860)
Less: Unamortized debt-issuance costs	(2,004)	(2,208)
Long-term debt, net of current portion	265,574	288,179
Various during 2022
Debt Instrument [Line Items]
Short-term debt	$ 18,068	140,567
Short-term debt, Interest Rate	Various indices plus margin
May 2024 | Term Loan and Revolver
Debt Instrument [Line Items]
Total long-term debt	$ 155,122	282,250
Long-term debt, Interest Rate	Libor plus margin
Notes Payable to Bank | Bank of Taiwan | June 2033
Debt Instrument [Line Items]
Total long-term debt	$ 2,492	4,154
Long-term debt, Interest Rate	Variable, 1.3% base
Notes Payable to Bank | Bank of Taiwan | September 2023
Debt Instrument [Line Items]
Total long-term debt	$ 1,807
Long-term debt, Interest Rate	2 year deposit rate floating
Notes Payable to Bank | China Trust Bank | May 2024
Debt Instrument [Line Items]
Total long-term debt	$ 16,168	16,714
Long-term debt, Interest Rate	Taibor 3 month rate + 0.5%
Notes Payable to Bank | China Trust Bank | December 2023
Debt Instrument [Line Items]
Total long-term debt	$ 3,614	3,511
Long-term debt, Interest Rate	Taibor 3 month rate + 0.5%
Notes Payable to Bank | E Sun Bank | December 2023
Debt Instrument [Line Items]
Total long-term debt	$ 3,614	3,511
Long-term debt, Interest Rate	1-M deposit rate plus 0.08%
Notes Payable to Bank | E Sun Bank | June 2027
Debt Instrument [Line Items]
Total long-term debt	$ 371	386
Long-term debt, Interest Rate	1-M deposit rate plus 0.08%
Notes Payable to Bank | E Sun Bank | June 2030
Debt Instrument [Line Items]
Total long-term debt	$ 1,771	$ 1,721
Long-term debt, Interest Rate	1-M deposit rate plus 0.08%
Notes Payable to Bank | HSBC | January 2023
Debt Instrument [Line Items]
Total long-term debt	$ 100,000
Long-term debt, Interest Rate	Libor plus margin