Useful Lives of Assets (Detail)	12 Months Ended
	Dec. 31, 2021
Buildings
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	40 months
Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	5 months
Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	10 months
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Useful lives, description	Lesser of lease term or 10 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	10 months
Test Systems Manufactured Internally
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	6 months
Machinery and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	3 months
Machinery and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful lives, maximum years	5 months