Basis of Presentation and Summary of Significant Accounting Policies - Product Warranties (Details)	9 Months Ended
	Sep. 30, 2021
Minimum | Commercial
Product Warranty Liability [Line Items]
Warranty service periods	5 years
Minimum | MMM LED Products
Product Warranty Liability [Line Items]
Warranty service periods	5 years
Maximum | Commercial
Product Warranty Liability [Line Items]
Warranty service periods	10 years
Maximum | MMM LED Products
Product Warranty Liability [Line Items]
Warranty service periods	10 years