Commitments and Contingencies - Additional Information (Details) - USD ($)				1 Months Ended			12 Months Ended
	Jul. 02, 2021	Nov. 13, 2018	Jul. 27, 2018	Nov. 30, 2022	Oct. 31, 2021	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Commitments And Contingencies [Line Items]
Non-current contingent consideration						$ 5,210,000		$ 5,210,000
Cash contingent earn-out payments							$ 807,000	1,421,000
Change in estimated fair value of contingent consideration							(5,035,000)	(3,524,000)
Quantum
Commitments And Contingencies [Line Items]
Non-current contingent consideration			$ 7,700,000
Contingent cash 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
Cash contingent earn-out payments					$ 800,000	1,400,000			$ 100,000
Contingent earn-out liability						800,000		800,000
Change in estimated fair value of contingent consideration							600,000
Estimated fair value of earn-out liability							200,000
Contingent consideration final payment				$ 200,000
Quantum | CBP
Commitments And Contingencies [Line Items]
Awarded contract amount							10,500,000
Optoseis Technology
Commitments And Contingencies [Line Items]
Non-current contingent consideration		$ 4,300,000
Contingent cash 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						$ 4,400,000		$ 4,400,000
Change in estimated fair value of contingent consideration							4,400,000
Fair value of contingent consideration liability							$ 0
Aquana
Commitments And Contingencies [Line Items]
Contingent cash payments earn-out period	6 years