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INVESTMENTS AND FAIR VALUE MEASUREMENTS (Tables)
9 Months Ended
Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of short-term investments
Marketable securities as of September 30, 2022 and December 31, 2021 consisted of following (in thousands):
September 30, 2022

Cost or Amortized Cost
Unrealized GainsUnrealized LossesFair Value
Mutual funds$30,400 $— $(3,265)$27,135 
U.S. treasury securities25,640 19 (24)25,635 
Corporate bonds15,095 277 (457)14,915 
Equity securities54,813 1,002 (13,468)42,347 
$125,948 $1,298 $(17,214)$110,032 
December 31, 2021
Cost or Amortized CostUnrealized GainsUnrealized LossesFair Value
Mutual funds$50,000 $— $(338)$49,662 
Corporate bonds6,996 290 — 7,286 
Equity securities38,100 — (1,331)36,769 
$95,096 $290 $(1,669)$93,717 
Marketable Securities
As of September 30, 2022 and December 31, 2021, marketable securities are as follows (in thousands):
September 30, 2022
Marketable Equity Securities Marketable Debt SecuritiesTotal
Mutual funds$27,135 $— $27,135 
U.S. treasury securities— 25,635 25,635 
Equity securities42,347 — 42,347 
Corporate bonds— 14,915 14,915 
$69,482 $40,550 $110,032 
December 31, 2021
Marketable Equity SecuritiesMarketable Debt SecuritiesTotal
Mutual funds$49,662 $— $49,662 
Equity securities36,769 — 36,769 
Corporate bonds— 7,286 7,286 
$86,431 $7,286 $93,717 
Debt Securities, Available-for-sale The amortized costs and fair value of our marketable debt securities, by contractual maturity, as of September 30, 2022 (in thousands) are as follows:
September 30, 2022
Amortized
Cost
Fair
Value
Less than 1 year$— $— 
1 to 5 years35,707 35,575 
More than 5 years5,028 4,975 
Total$40,735 $40,550 
Derivatives Not Designated as Hedging Instruments These derivative instruments are reported as Other current liabilities on our Condensed Consolidated Balance Sheets as of September 30, 2022 and December 31, 2021 (in thousands):
September 30, 2022
CostUnrealized LossesFair Value
Derivative instruments$2,606 $593 $3,199 
$2,606 $593 $3,199 
December 31, 2021
CostUnrealized GainsFair Value
Derivative instruments$6,370 $(103)$6,267 
$6,370 $(103)$6,267 
Realized and Unrealized Gains and Losses From Our Equity Securities and Derivative Instruments
A summary of realized and unrealized gains and losses from our equity securities and derivative instruments are as follows (in thousands):
Three Months Ended
September 30,
Nine Months Ended
September 30,
2022202120222021
Net unrealized gains (losses) recognized on marketable equity securities $(9,278)$490 $(14,062)$490 
Net realized gains (losses) recognized on marketable equity securities(555)— 218 — 
Net unrealized gains ( losses) recognized on derivative instruments3,907 (2)(696)(2)
Net realized gains recognized on derivative instruments2,214 4,089 
Net realized gains recognized on marketable debt securities188 — 556 — 
Total net gains (losses) recognized in interest and other income (loss), net$(3,524)$497 $(9,895)$497 
Schedule of financial instruments measured at fair value on recurring basis
Financial instruments measured at fair value on a recurring basis as of September 30, 2022 and December 31, 2021 are classified based on the valuation technique in the table below (in thousands):
September 30, 2022
Fair Value Measurements Using
Quoted Prices
 in Active
Markets for
Identical Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Assets:
Certificates of deposit$— $21,061 $— $21,061 
U.S. treasury securities— 25,635 — 25,635 
Mutual funds27,135 — — 27,135 
Equity securities42,347 — — 42,347 
Corporate bonds— 14,915 — 14,915 
Total assets at fair value$69,482 $61,611 $— $131,093 
Liabilities
Derivative instruments$— $3,199 $— $3,199 
Total liabilities at fair value$— $3,199 $— $3,199 

December 31, 2021
Fair Value Measurements Using
Quoted Prices
 in Active
Markets for
Identical Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Assets:
Mutual funds$49,662 $— $— 49,662 
Equity securities36,769 — — 36,769 
Corporate bonds— 7,286 — 7,286 
Total assets at fair value$86,431 $7,286 $— $93,717 
Liabilities
Derivative instruments$— $6,267 $— $6,267 
Total liabilities at fair value$— $6,267 $— $6,267