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Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on a Recurring Basis

The Company's financial assets measured at fair value on a recurring basis subject to the disclosure requirements at December 31, 2022 and September 30, 2022, were as follows (in thousands):

																		Gross Unrealized																		Classification on Balance Sheet
December 31, 2022						Fair Value Level						Cost or Amortized Cost						Gains						Losses						Aggregate Fair Value						Cash and Cash Equivalents						Short-Term Investments						Long-Term Investments
Changes in fair value recorded in other comprehensive income
Money Market Funds						Level 1						$	208,279					$	—					$	—					$	208,279					$	208,279					$	—					$	—
Corporate bonds and notes						Level 2						30,908						—						(613)						30,295						—						26,595						3,700
Municipal bonds and notes						Level 2						2,962						—						(81)						2,881						—						2,785						96
U.S. government securities						Level 2						23,154						—						(246)						22,908						—						22,908						—
U.S. government agency securities						Level 2						1,784						—						(57)						1,727						—						1,727						—
Total debt investments												$	267,087					$	—					$	(997)					$	266,090					$	208,279					$	54,015					$	3,796
Changes in fair value recorded in other net income (expense)
Equity investments						*																								$	4,016					$	—					$	—					$	4,016
Total equity investments																														4,016						—						—						4,016
Total investments																														$	270,106					$	208,279					$	54,015					$	7,812

 * The fair value of this equity investment is measured at net asset value (NAV) which approximates fair value and is not classified within the fair value hierarchy.

																		Gross Unrealized																		Classification on Balance Sheet
September 30, 2022						Fair Value Level						Cost or Amortized Cost						Gains						Losses						Aggregate Fair Value						Cash and Cash Equivalents						Short-Term Investments						Long-Term Investments
Changes in fair value recorded in other comprehensive income
Money Market Funds						Level 1						$	276,294					$	—					$	—					$	276,294					$	276,294					$	—					$	—
Corporate bonds and notes						Level 2						50,828						—						(950)						49,878						912						44,356						4,610
Municipal bonds and notes						Level 2						5,018						—						(102)						4,916						—						3,812						1,104
U.S. government securities						Level 2						84,734						—						(660)						84,074						10,120						73,954						—
U.S. government agency securities						Level 2						5,825						—						(75)						5,750						606						4,432						712
Total debt investments												$	422,699					$	—					$	(1,787)					$	420,912					$	287,932					$	126,554					$	6,426
Changes in fair value recorded in other net income (expense)
Equity investments						*																								$	3,118					$	—					$	—					$	3,118
Total equity investments																														3,118						—						—						3,118
Total investments																														$	424,030					$	287,932					$	126,554					$	9,544

* The fair value of this equity investment is measured at NAV which approximates fair value and is not classified within the fair value hierarchy.

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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X

- References

No definition available.

+ Details

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