Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition and Contracts with Customers - Additional Information (Details)

v3.21.2
Revenue Recognition and Contracts with Customers - Additional Information (Details)
9 Months Ended
Sep. 30, 2021
USD ($)
Standard Product Warranty Term 12 months
Revenue, Remaining Performance Obligation $ 0
Extended warranties  
Standard Product Warranty Term 12 months
OEM products and waveguide sales  
Standard Product Warranty Term 18 months