Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities Measured on Recurring Basis

The following table summarizes the fair value of our assets and liabilities that were accounted for at fair value on a recurring basis as of September 30, 2021 (in thousands): 

	Fair Value Measurements at September 30, 2021
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value at September 30, 2021
Assets:
Cash and cash equivalents	$	114,314	$	—	$	—	$	114,314
Short-term investments	19,667		—		—		19,667
Other assets	—		9,100		—		9,100
Liabilities:
Deferred compensation	—		8,527		—		8,527

The following table summarizes the fair value of our assets and liabilities that were accounted for at fair value on a recurring basis as of September 30, 2020 (in thousands):  

	Fair Value Measurements at September 30, 2020
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value at September 30, 2020
Assets:
Cash and cash equivalents	$	160,216	$	—	$	—	$	160,216
Short-term investments	18,705		—		—		18,705
Other assets	—		7,351		—		7,351
Liabilities:
Deferred compensation	—		6,569		—		6,569