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Cash, cash equivalents and marketable securities consisted of the following at September 30, 2021 and December 31, 2020 (in thousands):
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Unrealized
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Unrealized
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Fair
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September 30, 2021
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Amortized Cost
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|
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Gains
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|
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Losses
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Value
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Cash and cash equivalents:
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|
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|
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|
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Cash and money market funds
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$
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115,420
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|
|
$
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—
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|
|
$
|
—
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|
|
$
|
115,420
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|
|
Marketable securities:
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|
|
|
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|
|
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|
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Corporate debt securities - due in one year or less
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30,165
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1
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(2
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)
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30,164
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US Treasury obligation - due in more than one year to five years
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11,999
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|
|
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—
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|
|
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(3
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)
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|
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11,996
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Corporate debt securities - due in more than one year to five years
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|
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9,122
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|
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1
|
|
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(2
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)
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|
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9,121
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Total
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$
|
166,706
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|
|
$
|
2
|
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|
$
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(7
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)
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|
$
|
166,701
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|
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|
|
|
|
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|
|
|
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|
|
|
|
|
|
|
|
|
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|
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Unrealized
|
|
|
Unrealized
|
|
|
Fair
|
|
|
December 31, 2020
|
|
Amortized Cost
|
|
|
Gains
|
|
|
Losses
|
|
|
Value
|
|
|
Cash and cash equivalents:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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Cash and money market funds
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|
$
|
173,984
|
|
|
$
|
—
|
|
|
$
|
—
|
|
|
$
|
173,984
|
|
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Total
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|
$
|
173,984
|
|
|
$
|
—
|
|
|
$
|
—
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|
|
$
|
173,984
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|