FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value Assets
Marketable securities	$ 155,564	$ 152,167
Capped call transactions	5,600	2,582
Cash equivalents
Fair Value Assets
Cash equivalents	41,088	2,526
Venture investments
Fair Value Assets
Venture investments	16,265	13,069
Level 1
Fair Value Assets
Marketable securities	0	0
Capped call transactions	0	0
Level 1 \| Cash equivalents
Fair Value Assets
Cash equivalents	41,088	2,526
Level 1 \| Venture investments
Fair Value Assets
Venture investments	0	0
Level 2
Fair Value Assets
Marketable securities	155,564	152,167
Capped call transactions	5,600	2,582
Level 2 \| Cash equivalents
Fair Value Assets
Cash equivalents	0	0
Level 2 \| Venture investments
Fair Value Assets
Venture investments	0	0
Level 3
Fair Value Assets
Marketable securities	0	0
Capped call transactions	0	0
Level 3 \| Cash equivalents
Fair Value Assets
Cash equivalents	0	0
Level 3 \| Venture investments
Fair Value Assets
Venture investments	$ 16,265	$ 13,069

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Fair value portion 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.

+ References

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- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

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