Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Summary of Estimated Useful Lives of the Assets

Classification	Expected Useful Life
Computer equipment		3 to 5 years
Production machinery and technical equipment		3 to 20 years
Buildings		15 to 50 years
Other equipment, operating and office equipment		3 to 20 years