| Schedule of Cash, Cash Equivalents and Marketable Securities |
Cash, cash equivalents and marketable securities are classified as current unless mentioned otherwise below and consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of September 30, 2021 | | (in thousands) | | Cost | | Gross
Unrealized
Gain | | Gross
Unrealized
Loss | | Fair
Value | | Cash and cash equivalents | | $ | 385,903 | | | $ | — | | | $ | — | | | $ | 385,903 | | | Corporate debt securities | | 12,143 | | | — | | | (2) | | | 12,141 | | | Commercial paper | | 127,943 | | | 14 | | | — | | | 127,957 | | | Asset-backed securities | | 20,547 | | | 2 | | | — | | | 20,549 | | | U.S. government agency bonds | | 10,009 | | | — | | | — | | | 10,009 | | | Money market | | 350 | | | — | | | — | | | 350 | | | Certificates of deposit | | 51 | | | — | | | — | | | 51 | | | | $ | 556,946 | | | $ | 16 | | | $ | (2) | | | $ | 556,960 | | | Included in cash and cash equivalents | | $ | 385,903 | | | $ | — | | | $ | — | | | $ | 385,903 | | | Included in marketable securities | | 171,043 | | | 16 | | | (2) | | | 171,057 | | | Total cash, cash equivalents, and marketable securities | | $ | 556,946 | | | $ | 16 | | | $ | (2) | | | $ | 556,960 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of December 31, 2020 | | (in thousands) | | Cost | | Gross
Unrealized
Gain | | Gross
Unrealized
Loss | | Fair
Value | | Cash and cash equivalents | | $ | 163,240 | | | $ | — | | | $ | — | | | $ | 163,240 | | | Corporate debt securities | | 39,525 | | | 4 | | | (16) | | | 39,513 | | | Commercial paper | | 217,087 | | | 14 | | | (6) | | | 217,095 | | | Asset-backed securities | | 9,420 | | | 18 | | | — | | | 9,438 | | | U.S. government agency bonds | | 53,583 | | | 3 | | | (4) | | | 53,582 | | | Money market | | 350 | | | — | | | — | | | 350 | | | Certificates of deposit | | 51 | | | — | | | — | | | 51 | | | | $ | 483,256 | | | $ | 39 | | | $ | (26) | | | $ | 483,269 | | | Included in cash and cash equivalents | | $ | 163,240 | | | $ | — | | | $ | — | | | $ | 163,240 | | | Included in marketable securities | | 320,016 | | | 39 | | | (26) | | | 320,029 | | Total cash, cash equivalents, and marketable securities | | $ | 483,256 | | | $ | 39 | | | $ | (26) | | | $ | 483,269 | |
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| Schedule of Cash, Cash Equivalents, and Restricted Cash |
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows. | | | | | | | | | | | | | | | | (in thousands) | | September 30, 2021 | | September 30, 2020 | | Cash and cash equivalents | | $ | 385,903 | | | $ | 210,631 | | | Restricted cash | | 3,168 | | | 2,794 | | | Cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows | | $ | 389,071 | | | $ | 213,425 | |
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