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

Cost or Amortized Cost		Unrealized GainsUnrealized LossesFair Value
Mutual funds$26,352 $— $(3,143)$23,209 
U.S. treasury securities25,640 182 (24)25,798 
Corporate bonds13,496 48 (106)13,438 
Equity securities53,273 2,776 (5,836)50,213 
$118,761 $3,006 $(9,109)$112,658 
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 December 31, 2022, and December 31, 2021, marketable securities are as follows (in thousands):
December 31, 2022
Marketable Equity Securities Marketable Debt SecuritiesTotal
Mutual funds$23,209 $— $23,209 
U.S. treasury securities— 25,798 25,798 
Equity securities50,213 — 50,213 
Corporate bonds— 13,438 13,438 
$73,422 $39,236 $112,658 
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 marketable debt securities, by contractual maturity, as of December 31, 2022 (in thousands) are as follows:
December 31, 2022
Amortized
Cost		Fair
Value
Less than 1 year$22,014 $22,196 
1 to 5 years12,086 11,973 
More than 5 years5,036 5,067 
Total$39,136 $39,236 
Derivatives Not Designated as Hedging Instruments These derivative instruments are reported as Other current liabilities on our Consolidated Balance Sheets as of December 31, 2022 and December 31, 2021 (in thousands):
December 31, 2022
CostUnrealized LossesFair Value
Derivative instruments$2,987 $662 $3,649 
$2,987 $662 $3,649 
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):
Years Ended
December 31,
20222021
Net unrealized losses recognized on marketable equity securities $(4,533)$(1,669)
Net realized gains (losses) recognized on marketable equity securities(4,085)2,148 
Net realized gains (losses) recognized on derivative instruments5,493 (1,467)
Net unrealized gains (losses) recognized on derivative instruments(662)103 
Net realized gains recognized on marketable debt securities734 — 
Total net gains (losses) recognized in interest and other income (loss), net$(3,053)$(885)
Schedule of financial instruments measured at fair value on recurring basis
Financial instruments measured at fair value on a recurring basis as of December 31, 2022, and December 31, 2021 are classified based on the valuation technique in the table below (in thousands):
December 31, 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$— $5,300 $— $5,300 
U.S. treasury securities— 25,798 — 25,798 
Mutual funds23,209 — — 23,209 
Equity securities50,213 — — 50,213 
Corporate bonds— 13,438 — 13,438 
Total assets at fair value$73,422 $44,536 $— $117,958 
Liabilities
Derivative instruments$— $3,649 $— $3,649 
Total liabilities at fair value$— $3,649 $— $3,649 
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