XML 30 R21.htm IDEA: XBRL DOCUMENT v3.23.3
FINANCIAL INSTRUMENTS (Tables)
 9 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Schedule of Cash, Cash Equivalents and Available-for-Sale Securities by Significant Investment Category The following tables show the Company’s cash, cash equivalents and available-for-sale securities by significant investment category for each period presented:
September 30, 2023
Amortized CostGross
Unrealized
Gains		Gross
Unrealized
Losses		Aggregate Fair ValueCash and Cash Equivalents
Short-term
Marketable
Securities (1)
Long-term
Marketable
Securities (2)
Level 1:
Cash$451,294 $— $— $451,294 $451,294 $— $— 
Level 2:
Money market instruments291,425 — — 291,425 291,425 — — 
Corporate debt securities563,598 31 (6,135)557,494 731 217,306 339,457 
U.S. government agency securities281,045 4 (3,023)278,026 29,981 112,714 135,331 
Commercial paper21,864 — (4)21,860 11,983 9,877 — 
Asset-backed securities74,168 26 (446)73,748 — 534 73,214 
Subtotal1,232,100 61 (9,608)1,222,553 334,120 340,431 548,002 
Total$1,683,394 $61 $(9,608)$1,673,847 $785,414 $340,431 $548,002 
December 31, 2022
Amortized CostGross
Unrealized
Gains		Gross
Unrealized
Losses		Aggregate Fair ValueCash and Cash Equivalents
Short-term
Marketable
Securities (1)
Long-term
Marketable
Securities (2)
Level 1:
Cash$463,248 $— $— $463,248 $463,248 $— $— 
Level 2:
Money market instruments248,933 — — 248,933 248,933 — — 
Corporate debt securities504,984 34 (11,541)493,477 1,881 299,153 192,443 
U.S. government agency securities312,720 45 (3,771)308,994 — 229,846 79,148 
Commercial paper48,103 11 (22)48,092 10,469 37,623 — 
Asset-backed securities63,151 69 (592)62,628 — 384 62,244 
Subtotal1,177,891 159 (15,926)1,162,124 261,283 567,006 333,835 
Total$1,641,139 $159 $(15,926)$1,625,372 $724,531 $567,006 $333,835 
(1)    The Company’s short-term marketable securities mature in one year or less.
(2)    The Company’s long-term marketable securities mature between one and five years.