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Available-For-Sale Securities

12 Months Ended

Sep. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Available-For-Sale Securities

Note 6 — 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.

As of September 30, 2021, the immaterial unrealized losses attributable to the Company’s available-for-sale securities were primarily due to credit spreads and interest rate movements. The Company assessed whether such unrealized losses for the investments in its portfolio were caused by expected credit loss. Based on this assessment, the Company did not recognize any credit losses in the fiscal years ended September 30, 2021 and 2020. Realized gains and losses on short-term interest-bearing investments are included in earnings and are determined based on specific identification method.

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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- References

No definition available.

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- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2209399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2324412

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2176304

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1403
-Paragraph (b)

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