Segments Segments (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) Locations	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) Operating_Segments Locations	Sep. 30, 2019 USD ($)
Segments [Abstract]
Number of Operating Segments | Operating_Segments			3
Number Of Locations | Locations	160		160
Segment Reporting Information, Intersegment Revenue | $	$ 0	$ 0	$ 0	$ 0