MARKETABLE SECURITIES AND FAIR VALUE MEASUREMENTS - MARKETABLE SECURITIES (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Investments, Debt and Equity Securities [Abstract]
Equity securities, cost	$ 27,538
Equity securities, unrealized gain (loss)	490
Equity securities	28,028
Debt securities, cost	6,935
Debt securities, available-for-sale, unrealized gain (loss)	531
Corporate debt securities	$ 7,466

Equity Securities, FV-NI Unrealized Gain (Loss)

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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).

+ References

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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

+ References

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-Name Accounting Standards Codification
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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

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- Definition

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.

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