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