Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2025

Schedule of Fair Value Measurements for Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present information about the Company’s assets and liabilities measured at fair value on a recurring basis, and indicate the fair value hierarchy of the valuation techniques utilized by the Company:


	September 30, 2025
	Level 1		Level 2		Level 3		Total
	(in thousands)

Available-for-sale securities

U.S. government and agency securities	$	—	$	150,695	$	—	$	150,695

Certificate of deposits	—		12,019		—		12,019
Municipal securities	—		7,046		—		7,046
Commercial notes	—		13,801		—		13,801
Corporate debt securities	—		509,257		—		509,257
Total available-for-sale securities	—		692,818		—		692,818
Cash equivalents
Money market instruments	64,460		—		—		64,460
Term deposit	—		134,357		—		134,357
Certificate of deposits	—		3,001		—		3,001
Corporate debt securities	—		16,182		—		16,182
Total cash equivalents	64,460		153,540		—		218,000
Total financial assets	$	64,460	$	846,358	$	—	$	910,818


	September 30, 2024
	Level 1		Level 2		Level 3		Total
	(in thousands)

Available-for-sale securities
U.S. government and agency securities	$	—	$	160,723	$	—	$	160,723

Commercial notes	—		179,714		—		179,714
Corporate debt securities	—		237,839		—		237,839
Total available-for-sale securities	—		578,276		—		578,276
Cash equivalents
Money market instruments	66,966		—		—		66,966
Total cash equivalents	66,966		—		—		66,966
Total financial assets	$	66,966	$	578,276	$	—	$	645,242