CONSOLIDATED STATEMENTS OF CHANGES IN COMMON STOCK EQUITY - USD ($) $ in Millions	Total	Common Equity	Retained Earnings
Beginning Balance at Dec. 31, 2016	$ 292.9	$ 240.7	$ 52.2
Net Income	17.8		17.8
Dividends on Common Shares	(15.3)		(15.3)
Stock Compensation Plans	1.7	1.7
Issuance of Common Shares	1.0	1.0
Ending Balance at Sep. 30, 2017	298.1	243.4	54.7
Beginning Balance at Jun. 30, 2017	300.2	242.7	57.5
Net Income	2.3		2.3
Dividends on Common Shares	(5.1)		(5.1)
Stock Compensation Plans	0.4	0.4
Issuance of Common Shares	0.3	0.3
Ending Balance at Sep. 30, 2017	298.1	243.4	54.7
Beginning Balance at Dec. 31, 2017	336.6	275.8	60.8
Net Income	22.0		22.0
Dividends on Common Shares	(16.3)		(16.3)
Stock Compensation Plans	1.5	1.5
Issuance of Common Shares	1.0	1.0
Ending Balance at Sep. 30, 2018	344.8	278.3	66.5
Beginning Balance at Jun. 30, 2018	347.0	277.9	69.1
Net Income	2.8		2.8
Dividends on Common Shares	(5.4)		(5.4)
Stock Compensation Plans	0.1	0.1
Issuance of Common Shares	0.3	0.3
Ending Balance at Sep. 30, 2018	$ 344.8	$ 278.3	$ 66.5