MARKETABLE SECURITIES | MARKETABLE SECURITIES The Company accounts for its marketable securities as available for sale (“AFS”). Pre-tax net unrealized losses in Accumulated other comprehensive income (“AOCI”) were $1.4 million and $0.7 million as of March 31, 2024, and December 31, 2023, respectively. The following tables present the amortized cost, gross unrealized gains and losses, and fair market value of our AFS securities as of March 31, 2024, and December 31, 2023: March 31, 2024 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Short-term AFS securities U.S. Treasury securities $ 87,303 $ 25 $ (512) $ 86,816 Corporate debt securities 83,352 7 (848) 82,511 U.S. governmental agency securities 2,955 — (44) 2,911 Total short-term AFS securities $ 173,610 $ 32 $ (1,404) $ 172,238 Long-term AFS securities Corporate debt securities $ 158,301 $ 352 $ (190) $ 158,463 U.S. Treasury securities 146,981 179 (328) 146,832 U.S. governmental agency securities 1,931 — (22) 1,909 Total long-term AFS securities $ 307,213 $ 531 $ (540) $ 307,204 December 31, 2023 (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Short-term AFS securities U.S. Treasury securities $ 48,721 $ 55 $ (667) $ 48,109 Corporate debt securities 109,891 6 (1,828) 108,069 U.S. governmental agency securities 6,000 — (84) 5,916 Total short-term AFS securities $ 164,612 $ 61 $ (2,579) $ 162,094 Long-term AFS securities Corporate debt securities $ 103,061 $ 886 $ (5) $ 103,942 U.S. Treasury securities 148,878 1,023 (42) 149,859 U.S. governmental agency securities 3,857 — (25) 3,832 Total long-term AFS securities $ 255,796 $ 1,909 $ (72) $ 257,633 The following tables represent the AFS securities as of March 31, 2024, and December 31, 2023, that were in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by investment category and the length of time that individual securities have been in a continuous unrealized loss position: March 31, 2024 Less than 12 Months 12 Months or Greater Total (In thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Short-term AFS securities U.S. Treasury securities $ 29,247 $ (73) $ 23,487 $ (439) $ 52,734 $ (512) Corporate debt securities 9,628 (16) 66,987 (832) 76,615 (848) U.S. governmental agency securities 1,938 (17) 973 (27) 2,911 (44) Total short-term AFS securities $ 40,813 $ (106) $ 91,447 $ (1,298) $ 132,260 $ (1,404) Long-term AFS securities Corporate debt securities $ 68,341 $ (190) $ — $ — $ 68,341 $ (190) U.S. Treasury securities 73,282 (328) — — 73,282 (328) U.S. governmental agency securities 1,909 (22) — — 1,909 (22) Total long-term AFS securities $ 143,532 $ (540) $ — $ — $ 143,532 $ (540) December 31, 2023 Less than 12 Months 12 Months or Greater Total (In thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Short-term AFS securities U.S. Treasury securities $ 995 $ (1) $ 24,978 $ (666) $ 25,973 $ (667) Corporate debt securities 5,819 (5) 99,504 (1,823) 105,323 (1,828) U.S. governmental agency securities — — 5,916 (84) 5,916 (84) Total short-term AFS securities $ 6,814 $ (6) $ 130,398 $ (2,573) $ 137,212 $ (2,579) Long-term AFS securities Corporate debt securities $ 2,451 $ — $ 245 $ (5) $ 2,696 $ (5) U.S. Treasury securities 14,792 (36) 290 (6) 15,082 (42) U.S. governmental agency securities 3,832 (25) — — 3,832 (25) Total long-term AFS securities $ 21,075 $ (61) $ 535 $ (11) $ 21,610 $ (72) We assess AFS securities on a quarterly basis or more often if a potential loss-triggering event occurs. As of March 31, 2024 , and December 31, 2023, we did not intend to sell and it was not likely that we would be required to sell these investments before recovery of their amortized cost basis, which may be at maturity. Unrealized losses related to these investments are primarily due to interest rate fluctuations as opposed to changes in credit quality. Therefore, as of March 31, 2024 , and December 31, 2023, we have recognized no losses or allowance for credit losses related to AFS securities. As of March 31, 2024, our short-term and long-term marketable securities had remaining maturities of less than one month to 12 months and 13 months to 26 months, respectively. See Note 8 for more information regarding the fair value of our marketable securities. |