FINANCIAL INSTRUMENTS - Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Included in cash and cash equivalents:
Amortized Cost	$ 43,831	$ 53,929
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	43,831	53,930
Restricted cash:
Amortized Cost	1,888	1,880	$ 1,870
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	1,888	1,880
Marketable securities:
Amortized Cost	262,564	321,417
Gross Unrealized Gains	7	285
Gross Unrealized Losses	(243)	(54)
Fair Value	262,328	321,648
Money market funds
Included in cash and cash equivalents:
Amortized Cost	38,853	48,950
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	38,853	48,951
Restricted cash:
Amortized Cost	1,614	1,606
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	1,614	1,606
Commercial paper
Included in cash and cash equivalents:
Amortized Cost	4,978	4,979
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	4,978	4,979
Marketable securities:
Fair Value	86,358	84,382
Certificate of deposit
Restricted cash:
Amortized Cost	274	274
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	274	274
U.S. Treasury securities (due in less than one year)
Marketable securities:
Amortized Cost	21,896	22,910
Gross Unrealized Gains	0	41
Gross Unrealized Losses	(15)	0
Fair Value	21,881	22,951
Municipal securities (due in less than one year)
Marketable securities:
Amortized Cost	5,013	10,032
Gross Unrealized Gains	0	9
Gross Unrealized Losses	(4)	0
Fair Value	5,009	10,041
Municipal securities (due in one to two years)
Marketable securities:
Amortized Cost	2,020
Gross Unrealized Gains	0
Gross Unrealized Losses	(11)
Fair Value	2,009
Government-sponsored enterprise securities (due in less than one year)
Marketable securities:
Amortized Cost	2,987
Gross Unrealized Gains	0
Gross Unrealized Losses	(1)
Fair Value	2,986
Commercial paper (due in less than one year)
Marketable securities:
Amortized Cost	81,453	79,354
Gross Unrealized Gains	0	49
Gross Unrealized Losses	(73)	0
Fair Value	81,380	79,403
Corporate notes (due in less than one year)
Marketable securities:
Amortized Cost	127,029	167,805
Gross Unrealized Gains	7	175
Gross Unrealized Losses	(86)	(16)
Fair Value	126,950	167,964
Corporate notes (due in one to two years)
Marketable securities:
Amortized Cost	22,166	41,316
Gross Unrealized Gains	0	11
Gross Unrealized Losses	(53)	(38)
Fair Value	$ 22,113	$ 41,289

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Restricted Cash And Cash Equivalents, Gross Unrealized Gains

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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.

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Amount of 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.

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Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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).

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Amount of cash and cash equivalent restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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The aggregate value of all restricted investments.

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