Summary of Significant Accounting Policies (Details)	6 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]
Risks and uncertainties in entity's business	Risks and UncertaintiesThe COVID-19 pandemic has had global economic impacts including disrupting customer demand and global supply chains, resulting in market volatility. The extent of the recent pandemic and its ongoing impact on our operations is volatile, but is being monitored closely by our management. During portions of the first half of 2020 certain of our European factories were closed due to government actions and local conditions, and any further closures that may be imposed on us could impact our results for 2021. New variants of the virus may cause previously lifted restrictions to be reinstated, which could result in more disruptions. Incremental costs we have incurred related to COVID-19, such as personal protective equipment, increased cleaning and sanitizing of our facilities, and other such items, have not been material to date. As economies have reopened, global supply chains have struggled to keep pace with rapidly changing demand. The resulting supply constraints could appear across a variety of areas including mechanical, electrical and logistics portions of the supply chain, which could impact our ability to ship products in a timely manner. At this time, we have not identified any significant decrease in long-term customer demand for our products and services. Certain of our customers' projects and deployments have continued to shift later into 2021 and beyond.

Summary of Significant Accounting Policies (Details)

6 Months Ended

Jun. 30, 2021

Risks and uncertainties in entity's business

Risks and UncertaintiesThe COVID-19 pandemic has had global economic impacts including disrupting customer demand and global supply chains, resulting in market volatility. The extent of the recent pandemic and its ongoing impact on our operations is volatile, but is being monitored closely by our management. During portions of the first half of 2020 certain of our European factories were closed due to government actions and local conditions, and any further closures that may be imposed on us could impact our results for 2021. New variants of the virus may cause previously lifted restrictions to be reinstated, which could result in more disruptions. Incremental costs we have incurred related to COVID-19, such as personal protective equipment, increased cleaning and sanitizing of our facilities, and other such items, have not been material to date. As economies have reopened, global supply chains have struggled to keep pace with rapidly changing demand. The resulting supply constraints could appear across a variety of areas including mechanical, electrical and logistics portions of the supply chain, which could impact our ability to ship products in a timely manner. At this time, we have not identified any significant decrease in long-term customer demand for our products and services. Certain of our customers' projects and deployments have continued to shift later into 2021 and beyond.