Revenue - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Revenue From Contract With Customer [Line Items]
Remaining performance obligations	$ 0.7
Minimum
Revenue From Contract With Customer [Line Items]
Payment period from contract inception	30 days
Maximum
Revenue From Contract With Customer [Line Items]
Payment period from contract inception	90 days
Software Licenses | Minimum
Revenue From Contract With Customer [Line Items]
Contract period	1 year
Software Licenses | Maximum
Revenue From Contract With Customer [Line Items]
Contract period	3 years
Subscriptions | Minimum
Revenue From Contract With Customer [Line Items]
Contract period	1 month
Subscriptions | Maximum
Revenue From Contract With Customer [Line Items]
Contract period	6 years
Software Maintenance and Support Services | Minimum
Revenue From Contract With Customer [Line Items]
Contract period	1 year
Software Maintenance and Support Services | Maximum
Revenue From Contract With Customer [Line Items]
Contract period	3 years
Extended Hardware Warranties | Minimum
Revenue From Contract With Customer [Line Items]
Contract period	1 year
Extended Hardware Warranties | Maximum
Revenue From Contract With Customer [Line Items]
Contract period	2 years