Summary of Significant Accounting Policies (Detail 5)	12 Months Ended
	Dec. 31, 2019
Furniture and Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	7 years
Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	39 years
Information Systems [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	3 years
Maximum [Member] | Machinery, equipment and tooling [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	10 years
Minimum [Member] | Machinery, equipment and tooling [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	3 years