XML 84 R70.htm IDEA: XBRL DOCUMENT v3.21.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Details)
12 Months Ended
Dec. 31, 2020
Patents  
Intangible assets  
Useful life (in years) 5 years
SAP Licenses  
Intangible assets  
Useful life (in years) 10 years
Other licenses  
Intangible assets  
Useful life (in years) 5 years
Trade name and trademark  
Intangible assets  
Useful life (in years) 7 years