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Cash, Cash Equivalents, Restricted Cash and Marketable Securities
 12 Months Ended
Dec. 31, 2023
Cash and Cash Equivalents [Abstract]  
CASH, CASH EQUIVALENTS, RESTRICTED CASH AND MARKETABLE SECURITIES CASH, CASH EQUIVALENTS, RESTRICTED CASH AND MARKETABLE SECURITIES
Cash, Cash Equivalents and Restricted Cash
Cash, cash equivalents and restricted cash as of December 31, 2023 and 2022 consisted of the following (in thousands):
 December 31,
 20232022
Money market and demand accounts$430,707 $643,825 
Commercial paper5,728 26,741 
U.S. government securities— 15,707 
Corporate bonds, asset backed and other securities6,526 16,888 
 Total cash, cash equivalents and restricted cash$442,961 $703,161 
The following table provides a reconciliation of total cash, cash equivalents and restricted cash as of December 31, 2023 and 2022 within the consolidated balance sheets (in thousands):
December 31,
20232022
Cash and cash equivalents$437,076 $693,479 
Restricted cash included within prepaid and other current assets5,885 9,682 
Total cash, cash equivalents and restricted cash$442,961 $703,161 
Marketable Securities
As of December 31, 2023 and 2022, the majority of our marketable securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported net-of-tax as a separate component of shareholders’ equity. Substantially all of our investments are investment-grade government and corporate debt securities that have maturities of less than two years, and we have both the ability and intent to hold the investments until maturity. We recorded no other-than-temporary impairments during 2023, 2022 or 2021. The gross realized gains and losses on sales of marketable securities were not significant during the years ended December 31, 2023, 2022 and 2021.
    Marketable securities as of December 31, 2023 and 2022 consisted of the following (in thousands):
 December 31, 2023
CostGross Unrealized GainsGross Unrealized LossesFair Value
Available-for-sale securities
Commercial paper$174,872 $141 $(22)$174,991 
U.S. government securities257,150 75 (375)256,850 
Corporate bonds, asset backed and other securities149,729 92 (128)149,693 
Total available-for-sale securities$581,751 $308 $(525)$581,534 
Reported in:
Cash and cash equivalents$12,254 
Short-term investments569,280 
Total marketable securities$581,534 
 December 31, 2022
CostGross Unrealized GainsGross Unrealized LossesFair Value
Available-for-sale securities
Commercial paper$210,146 $30 $(220)$209,956 
U.S. government securities244,174 19 (353)243,840 
Corporate bonds, asset backed and other securities113,921 33 (116)113,838 
Total available-for-sale securities$568,241 $82 $(689)$567,634 
Reported in:
Cash and cash equivalents$59,336 
Short-term investments508,298 
Total marketable securities$567,634 
As of December 31, 2023 and 2022, $489.8 million and $557.7 million, respectively, of our short-term investments had contractual maturities within one year. The remaining portions of our short-term investments had contractual maturities within one to three years.