Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis by level of the fair value hierarchy were as follows:

	September 30, 2020
(In thousands)	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value
Assets
Cash equivalents	$	—	$	18,634	$	—	$	18,634
Available-for-sale securities		—		30,313		—	$	30,313
Total assets	$	—	$	48,947	$	—	$	48,947

	September 30, 2019
(In thousands)	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value
Assets
Cash equivalents	$	—	$	24,375	$	—	$	24,375
Available-for-sale securities		—		24,931		—	$	24,931
Total assets	$	—	$	49,306	$	—	$	49,306
Liabilities
Contingent consideration	$	—	$	—	$	3,200	$	3,200
Total liabilities	$	—	$	—	$	3,200	$	3,200

Schedule of Contingent Consideration Liabilities Measured at Fair Value

Changes in the contingent consideration liabilities measured at fair value using Level 3 inputs were as follows:

(In thousands)
Contingent consideration liability at September 30, 2018	$	14,466
Additions		—
Fair value adjustments		(415	)
Settlements		(10,979	)
Interest accretion		254
Foreign currency translation		(126	)
Contingent consideration liability at September 30, 2019		3,200
Additions		—
Fair value adjustments		—
Settlements		(3,200	)
Interest accretion		—
Foreign currency translation		—
Contingent consideration liability at September 30, 2020	$	—