XML 31 R21.htm IDEA: XBRL DOCUMENT v3.25.3
FINANCIAL INSTRUMENTS (Tables)
9 Months Ended
Sep. 30, 2025
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 as of the dates presented:
September 30, 2025
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$400,492 $— $— $400,492 $400,492 $— $— 
Level 2:
Money market instruments844,616 — — 844,616 844,616 — — 
Corporate debt securities474,892 3,520 (26)478,386 — 181,605 296,781 
U.S. government agency securities202,584 991 (21)203,554 5,000 45,912 152,642 
Asset-backed securities63,313 423 (8)63,728 — 214 63,514 
Subtotal1,585,405 4,934 (55)1,590,284 849,616 227,731 512,937 
Total$1,985,897 $4,934 $(55)$1,990,776 $1,250,108 $227,731 $512,937 
December 31, 2024
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$329,619 $— $— $329,619 $329,619 $— $— 
Level 2:
Money market instruments613,223 — — 613,223 613,223 — — 
Corporate debt securities503,202 2,410 (390)505,222 — 168,104 337,118 
Asset-backed securities138,508 363 (344)138,527 — 25,864 112,663 
U.S. government agency securities72,027 359 (33)72,353 — 896 71,457 
Subtotal1,326,960 3,132 (767)1,329,325 613,223 194,864 521,238 
Total$1,656,579 $3,132 $(767)$1,658,944 $942,842 $194,864 $521,238 
(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.