Bank Credit Agreements and Other Short-Term and Long-Term Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total long-term debt	$ 21,398	$ 150,348
Less: Current portion of long-term debt	(4,419)	(1,693)
Less: Unamortized debt-issuance costs	0	(1,185)
Long-term debt, net of current portion	16,979	147,470
Various during 2024
Debt Instrument [Line Items]
Short-term debt	$ 40,685	36,280
Short-term debt, Interest Rate	Various indices plus margin
Notes Payable to Bank | Bank of Taiwan | June 2033
Debt Instrument [Line Items]
Total long-term debt	$ 1,880	2,063
Long-term debt, Interest Rate	2-yr deposit rate floating plus 0.1148%
Notes Payable to Bank | Bank of Taiwan | September 2025
Debt Instrument [Line Items]
Total long-term debt	$ 1,626	1,628
Long-term debt, Interest Rate	2-yr deposit rate floating plus 0.082%
Notes Payable to Bank | CTBC Bank | December 2024
Debt Instrument [Line Items]
Total long-term debt	$ 3,252	3,256
Long-term debt, Interest Rate	TAIBOR 3M plus 0.5%
Notes Payable to Bank | CTBC Bank | May 2028
Debt Instrument [Line Items]
Total long-term debt	$ 13,098	13,840
Long-term debt, Interest Rate	TAIBOR 3M plus 0.5%
Notes Payable to Bank | E Sun Bank | December 2024
Debt Instrument [Line Items]
Long-term debt, Interest Rate	1-M deposit rate floating plus 0.08%
Notes Payable to Bank | E Sun Bank | July 2027
Debt Instrument [Line Items]
Total long-term debt	$ 217	275
Long-term debt, Interest Rate	1-M deposit rate floating plus 0.08%
Notes Payable to Bank | E Sun Bank | July 2027
Debt Instrument [Line Items]
Total long-term debt	$ 1,325	1,516
Long-term debt, Interest Rate	1-M deposit rate floating plus 0.08%
Notes Payable to Bank | E Sun Bank | September 2023
Debt Instrument [Line Items]
Total long-term debt	$ 0	166
Long-term debt, Interest Rate	2-yr deposit rate plus annual rate floating
Notes Payable to Bank | HSBC | January 2025
Debt Instrument [Line Items]
Total long-term debt	$ 0	105,000
Long-term debt, Interest Rate	1M SOFR+Margin
Notes Payable to Bank | Taishin International Bank | April 2023
Debt Instrument [Line Items]
Total long-term debt	$ 0	11
Long-term debt, Interest Rate	Fixed annual rate
Notes Payable to Bank | Taishin International Bank | April 2024
Debt Instrument [Line Items]
Total long-term debt	$ 0	217
Long-term debt, Interest Rate	Fixed annual rate
Notes Payable to Bank | Chang Hwa Bank | June-July 2026
Debt Instrument [Line Items]
Total long-term debt	$ 0	518
Long-term debt, Interest Rate	2-yr deposit rate floating plus 1.405% - 1.655%
Annual Rate Plus Cost of Capital | Notes Payable to Bank | Taishin International Bank | April 2023
Debt Instrument [Line Items]
Total long-term debt	$ 0	43
Long-term debt, Interest Rate	Annual rate plus cost of capital
SOFR | Notes Payable to Bank | E Sun Bank | December 2024
Debt Instrument [Line Items]
Total long-term debt	$ 0	3,256
SOFR | Notes Payable to Bank | HSBC | January 2025
Debt Instrument [Line Items]
Total long-term debt	$ 0	$ 18,558
Long-term debt, Interest Rate	1M SOFR+Margin