Summary of Significant Accounting Policies - Depreciation and Amortization Periods for Property and Equipment (Detail)	3 Months Ended
	Mar. 31, 2020
Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	40 years
Machinery and Equipment [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	5 years
Machinery and Equipment [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	7 years
Furniture and Fixtures [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	5 years
Computer Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	3 years
Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	3 years
Trade Show Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization	3 years