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Available-For-Sale Securities (Tables)

12 Months Ended

Sep. 30, 2021

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, 2021
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Money market funds		$	209,026			$	—			$	—			$	209,026
Corporate bonds			191,445				76				1,084				190,437
U.S. government treasuries			54,987				4				239				54,752
Supranational and sovereign debt			7,479				—				26				7,453
Asset backed obligations			3,890				—				5				3,885
Total(1)		$	466,827			$	80			$	1,354			$	465,553

(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 balance sheet. As of September 30, 2021, $256,527 of securities were classified as short-term interest-bearing investments and $209,026 of securities were classified as cash and cash equivalents.

		As of September 30, 2020
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Money market funds		$	558,633			$	—			$	—			$	558,633
Corporate bonds			754				—				2				752
Total(1)		$	559,387			$	—			$	2			$	559,385

(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 balance sheet. As of September 30, 2020, $752 of securities were classified as short-term interest-bearing investments and $558,633 of securities were classified as cash and cash equivalents.

Available-for-Sale Securities Debt Maturities Market Value

As of September 30, 2021, the Company’s available-for-sale securities had the following maturity dates:

		Market Value
Due within one year		$	226,990
1 to 2 years			19,080
2 to 3 years			58,270
3 to 4 years			94,188
Thereafter			67,025
		$	465,553

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Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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No definition available.

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