Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (Estimated Useful Lives Of Assets) (Details)

v3.10.0.1
Significant Accounting Policies (Estimated Useful Lives Of Assets) (Details)
 12 Months Ended
Dec. 31, 2018
Minimum [Member] | Buildings And Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 5 years
Minimum [Member] | Furniture, Fixtures And Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 5 years
Maximum [Member] | Buildings And Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 40 years
Maximum [Member] | Furniture, Fixtures And Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 10 years