Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Other Financial Instrument
Cash and cash equivalents	$ 110,112	$ 189,711
Net investment in sales-type leases	26,713	28,392
Equity securities	1,092	1,087
Equity securities	15,200
Foreign exchange contracts forwards	(122)	79
Carrying Amount, Fair Value Disclosure [Member] \| Fair Value, Inputs, Level 1 [Member]
Other Financial Instrument
Cash and cash equivalents	110,112	189,711
Equity securities	1,092	1,087
Carrying Amount, Fair Value Disclosure [Member] \| Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Net financed sales receivables	100,460	112,657
Net investment in sales-type leases	26,713	28,392
Equity securities	1,000	1,000
COLI	3,335	3,275
Bank of China Facility borrowings		(3,612)
Convertible Notes	(230,000)	(230,000)
Carrying Amount, Fair Value Disclosure [Member] \| Designated as Hedging Instrument [Member] \| Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Foreign exchange contracts forwards	(122)	79
Estimate of Fair Value, Fair Value Disclosure [Member] \| Fair Value, Inputs, Level 1 [Member]
Other Financial Instrument
Cash and cash equivalents	110,112	189,711
Equity securities	1,092	1,087
Estimate of Fair Value, Fair Value Disclosure [Member] \| Fair Value, Inputs, Level 2 [Member]
Other Financial Instrument
Net financed sales receivables	100,106	112,662
Net investment in sales-type leases	26,765	28,407
Equity securities	1,000	1,000
COLI	3,335	3,275
Bank of China Facility borrowings		(3,612)
Convertible Notes	(201,825)	(223,100)
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	$ (122)	$ 79

Company-owned life insurance.

No definition available.

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- Definition

Net financed sales receivables.

+ References

No definition available.

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- Definition

Other financial instrument.

+ References

No definition available.

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- Definition

Working capital loan.

+ References

No definition available.

+ Details

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

+ References

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

No definition available.

+ Details

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- Definition

Amount, after allowance for credit loss, of net investment in sales-type lease.

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