Commitments and Contingencies - Additional Information (Details) - USD ($)			3 Months Ended			9 Months Ended
	Nov. 13, 2018	Jul. 27, 2018	Sep. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2020
Commitments And Contingencies [Line Items]
Contingent earn-out liability				$ 6,932,000		$ 6,932,000		$ 10,962,000
Change in estimated fair value of contingent consideration				(795,000)	$ 662,000	(1,713,000)	$ 1,634,000
Future minimum lease obligations				$ 1,421,000		$ 1,421,000
Maximum
Commitments And Contingencies [Line Items]
Operating lease term				7 years		7 years
Quantum
Commitments And Contingencies [Line Items]
Contingent earn-out liability		$ 7,700,000
Contingent payments earn-out period		4 years
Contingent payments earn-out period ending month and year		2022-07
Contingent payments maximum earn-out amount		$ 23,500,000
Contingent earn-out liability								5,800,000
Change in estimated fair value of contingent consideration				$ (900,000)		$ (1,700,000)
Estimated fair value of earn-out liability				4,100,000		4,100,000
Contingent earn-out cash payment								100,000
Quantum | Scenario Forecast
Commitments And Contingencies [Line Items]
Contingent earn-out additional payment			$ 2,300,000
Optoseis Technology
Commitments And Contingencies [Line Items]
Contingent earn-out liability	$ 4,300,000
Contingent payments earn-out period	5 years 6 months
Contingent payments earn-out period ending month and year	2024-05
Contingent payments maximum earn-out amount	$ 23,200,000
Contingent earn-out liability								$ 5,200,000
Change in estimated fair value of contingent consideration						(17,000)
Estimated fair value of earn-out liability				$ 5,200,000		$ 5,200,000