Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Other Financial Instrument
Cash and cash equivalents		$ 76,200	$ 97,401
Net investment in sales-type leases		29,539	28,332
Credit Facility borrowings		(22,924)	(36,111)
Carrying Amount, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 1 [Member]
Other Financial Instrument
Cash and cash equivalents	[1]	76,200	97,401
Equity securities	[2]		1,035
Carrying Amount, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Net financed sales receivables	[3]	97,615	101,052
Net investment in sales-type leases	[3]	29,539	28,332
Equity securities	[1]	1,000	1,000
COLI	[4]	3,522	3,398
Convertible Notes	[5]	(230,000)	(230,000)
Carrying Amount, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | HSBC China Facility [Member]
Other Financial Instrument
Credit Facility borrowings	[1]		(12,496)
Carrying Amount, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Bank of China Facility [Member]
Other Financial Instrument
Credit Facility borrowings	[1]		(374)
Carrying Amount, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Federal Economic Development Loan [Member]
Other Financial Instrument
Credit Facility borrowings	[3]	(2,498)	(1,782)
Carrying Amount, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Wells Fargo Credit Facility [Member]
Other Financial Instrument
Credit Facility borrowings	[1]	(24,000)	(25,000)
Carrying Amount, Fair Value Disclosure [Member] | Designated as Hedging Instrument [Member] | Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Foreign exchange contracts forwards	[2]	819	(649)
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 1 [Member]
Other Financial Instrument
Cash and cash equivalents	[1]	76,200	97,401
Equity securities	[2]		1,035
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Net financed sales receivables	[3]	96,500	100,059
Net investment in sales-type leases	[3]	28,751	27,972
Equity securities	[1]	1,000	1,000
COLI	[4]	3,522	3,398
Convertible Notes	[5]	(205,850)	(196,717)
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | HSBC China Facility [Member]
Other Financial Instrument
Credit Facility borrowings	[1]		(12,496)
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Bank of China Facility [Member]
Other Financial Instrument
Credit Facility borrowings	[1]		(374)
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Federal Economic Development Loan [Member]
Other Financial Instrument
Credit Facility borrowings	[3]	(2,498)	(1,782)
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Wells Fargo Credit Facility [Member]
Other Financial Instrument
Credit Facility borrowings	[1]	(24,000)	(25,000)
Estimate of Fair Value, Fair Value Disclosure [Member] | Designated as Hedging Instrument [Member] | Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Foreign exchange contracts forwards	[2]	$ 819	$ (649)

[1] Recorded at cost, which approximates fair value.

[2] Fair value is determined using quoted prices in active markets.

[3] Fair value is estimated based on discounting future cash flows at currently available interest rates with comparable terms.

[4] Measured at cash surrender value, which approximates fair value.

[5] Fair value is determined using quoted market prices that are observable in the market or that could be derived from observable market data.