CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Preferred stock	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss	Treasury stock	Non-controlling interest
Balance at Dec. 31, 2018	$ 989.0	$ 667.3	$ 0.3	$ 3.3	$ 220.3	$ (206.2)	$ (49.6)	$ 353.6
Net income (loss)	63.8				38.5			25.3
Other comprehensive loss, net	(4.7)					(3.4)		(1.3)
Dividends paid to noncontrolling interest	(18.8)							(18.8)
Cash dividends	(20.1)				(20.1)
Equity transactions with noncontrolling interest, net and other	(2.5)				(3.2)			0.7
Balance at Sep. 30, 2019	1,006.7	667.3	0.3	3.3	235.5	(209.6)	(49.6)	359.5
Balance at Jun. 30, 2019	1,017.0	667.3	0.3	3.3	230.2	(198.5)	(49.6)	364.0
Net income (loss)	17.2				13.1			4.1
Other comprehensive loss, net	(15.1)					(11.1)		(4.0)
Dividends paid to noncontrolling interest	(4.2)							(4.2)
Cash dividends	(6.8)				(6.8)
Equity transactions with noncontrolling interest, net and other	(1.4)				(1.0)			(0.4)
Balance at Sep. 30, 2019	1,006.7	667.3	0.3	3.3	235.5	(209.6)	(49.6)	359.5
Balance at Dec. 31, 2019	980.1	667.3	0.3	3.3	239.4	(220.7)	(49.6)	340.1
Net income (loss)	53.1				30.7			22.4
Other comprehensive loss, net	(3.3)					(2.2)		(1.1)
Dividends paid to noncontrolling interest	(21.1)							(21.1)
Cash dividends	(11.3)			(2.2)	(9.1)
Contribution of preferred stock		(667.3)		667.3
Equity transactions with noncontrolling interest, net and other	(0.5)			(0.1)	(0.3)			(0.1)
Balance at Sep. 30, 2020	997.0		0.3	668.3	260.7	(222.9)	(49.6)	340.2
Balance at Jun. 30, 2020	975.5	667.3	0.3	1.5	247.1	(232.0)	(49.6)	340.9
Net income (loss)	19.4				15.4			4.0
Other comprehensive loss, net	12.3					9.1		3.2
Dividends paid to noncontrolling interest	(7.9)							(7.9)
Cash dividends	(2.3)				(2.3)
Contribution of preferred stock		$ (667.3)		667.3
Equity transactions with noncontrolling interest, net and other				(0.5)	0.5
Balance at Sep. 30, 2020	$ 997.0		$ 0.3	$ 668.3	$ 260.7	$ (222.9)	$ (49.6)	$ 340.2