Net Income Per Common Share (Narrative) (Details) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Net Income Per Common Share [Abstract]
Tangible equity units	9,091,179	9,653,184
Number Of SharesTo Be Issued Basic Stock Purchase Contracts		9,091,179
Treshold	$ 42.41	$ 42.41