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Investments (Tables)

6 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Summary of Short-term and Long-term Investments and Marketable Securities

The Company’s investments consisted of the following:


			As of March 31, 2024
			(in thousands)
			Adjusted Basis						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value


Available-for-sale securities			$	396,249					$	11					$	(850)					$	395,410

Total current investments			$	396,249					$	11					$	(850)					$	395,410


			As of September 30, 2023
			(in thousands)
			Adjusted Basis						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value


Available-for-sale securities			$	295,699					$	3					$	(2,967)					$	292,735

Total current investments			$	295,699					$	3					$	(2,967)					$	292,735