Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

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

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

	December 31, 2022
	Level 1		Level 2		Level 3		Total
	(in thousands)
U.S. government bonds	$	27,423	$	—	$	—	$	27,423
Commercial notes	—		104,311		—		104,311
Corporate debt securities	—		319,690		—		319,690
Certificate of deposits	—		—		—		—
Money market instruments	82,924		—		—		82,924

	September 30, 2022
	Level 1		Level 2		Level 3		Total
	(in thousands)
U.S. government bonds	$	1,973	$	—	$	—	$	1,973
Commercial notes	—		41,727		—		41,727
Corporate debt securities	—		271,333		—		271,333
Certificate of deposits	50,000		—		—		50,000
Money market instruments	39,262		—		—		39,262