Commitments and Contingencies - Additional Information (Details) - USD ($)			12 Months Ended
	Nov. 13, 2018	Jul. 27, 2018	Sep. 30, 2019	Dec. 31, 2019
Commitments And Contingencies [Line Items]
Contingent earn-out liability			$ 9,940,000	$ 9,940,000
Future minimum lease obligations, remainder of fiscal year 2020				124,000
Future minimum lease obligations, fiscal year 2021				84,000
Office Space and Certain Equipment
Commitments And Contingencies [Line Items]
Future minimum lease obligations, remainder of fiscal year 2020				200,000
Future minimum lease obligations, fiscal year 2021				$ 100,000
Maximum | Office Space and Certain Equipment
Commitments And Contingencies [Line Items]
Operating lease term				2 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
Adjustment to initial contingent earn-out liability			(2,900,000)
OptoSeis® Fiber Optic Sensing Technology Business
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
Adjustment to initial contingent earn-out liability			$ 800,000