XML 55 R39.htm IDEA: XBRL DOCUMENT
v3.23.3

Available-For-Sale Securities (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract] |
Interest-Bearing Investments in Available-for-Sale Securities | Available-for-sale securities consist of the following interest-bearing investments:
|  | As of September 30, 2023 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Money market funds |  | $ | 308,354 |  |  | $ | — |  |  | $ | — |  |  | $ | 308,354 |
Corporate bonds |  |  | 160,370 |  |  |  | — |  |  |  | 10,060 |  |  |  | 150,310 |
U.S. government treasuries |  |  | 44,782 |  |  |  | — |  |  |  | 3,644 |  |  |  | 41,138 |
Supranational and sovereign debt |  |  | 18,566 |  |  |  | — |  |  |  | 1,774 |  |  |  | 16,792 |
Asset backed obligations |  |  | 7,423 |  |  |  | — |  |  |  | 308 |  |  |  | 7,115 |
Municipal bonds |  |  | 7,513 |  |  |  | — |  |  |  | 417 |  |  |  | 7,096 |
Total(1) |  | $ | 547,008 |  |  | $ | — |  |  | $ | 16,203 |  |  | $ | 530,805 |
(1) Available-for-sale securities with maturities longer than 90 days from the date of acquisition were classified as short-term interest-bearing investments and available-for-sale securities with maturities of 90 days or less from the date of acquisition were included in cash and cash equivalents on the Company’s consolidated balance sheets. As of September 30, 2023, $222,451 of securities were classified as short-term interest-bearing investments and $308,354 of securities were classified as cash and cash equivalents.
|  | As of September 30, 2022 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Money market funds |  | $ | 266,362 |  |  | $ | — |  |  | $ | — |  |  | $ | 266,362 |
Corporate bonds |  |  | 183,266 |  |  |  | — |  |  |  | 14,958 |  |  |  | 168,308 |
U.S. government treasuries |  |  | 44,658 |  |  |  | — |  |  |  | 4,429 |  |  |  | 40,229 |
Municipal bond |  |  | 17,759 |  |  |  | — |  |  |  | 1,634 |  |  |  | 16,125 |
Supranational and sovereign debt |  |  | 11,882 |  |  |  | — |  |  |  | 1,288 |  |  |  | 10,594 |
Asset backed obligations |  |  | 9,835 |  |  |  | — |  |  |  | 488 |  |  |  | 9,347 |
Total(1) |  | $ | 533,762 |  |  | $ | — |  |  | $ | 22,797 |  |  | $ | 510,965 |
(1) Available-for-sale securities with maturities longer than 90 days from the date of acquisition were classified as short-term interest-bearing investments and available-for-sale securities with maturities of 90 days or less from the date of acquisition were included in cash and cash equivalents on the Company’s consolidated balance sheets. As of September 30, 2022, $244,603 of securities were classified as short-term interest-bearing investments and $266,362 of securities were classified as cash and cash equivalents.
Available-for-Sale Securities Debt Maturities Market Value | As of September 30, 2023, the Company’s available-for-sale securities had the following maturity dates:
|  | Market Value |
Due within one year |  | $ | 365,233 |
1 to 2 years |  |  | 85,236 |
2 to 3 years |  |  | 66,964 |
3 to 4 years |  |  | 13,372 |
|  | $ | 530,805 |

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration