XML 78 R76.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
General and Summary of Significant Accounting Policies (Finite Lived Intangible Assets) (Details)
12 Months Ended
Dec. 31, 2019
Minimum  
Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Asset, Useful Life 1 year
Maximum  
Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Asset, Useful Life 50 years