CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Millions	Total	Preferred stock	Common stock	Additional paid-in capital	Retained earnings (deficit)	Accumulated other comprehensive income (loss)	Treasury stock	Non-controlling interest
Balance at Dec. 31, 2016	$ 444.4	$ 667.3	$ 3.6		$ (198.5)	$ (221.9)	$ (49.6)	$ 243.5
Net income	302.6				207.5			95.1
Cash dividends	(27.2)			$ (0.3)	(26.9)
Dividends paid to noncontrolling interest	(18.1)							(18.1)
Other comprehensive income (loss), net	64.6					42.9		21.7
Equity transactions with noncontrolling interest, net	0.4			0.3				0.1
Balance at Dec. 31, 2017	766.7	667.3	3.6		(17.9)	(179.0)	(49.6)	342.3
Change in accounting principle -ASU 2014-09 at Dec. 31, 2017	5.0				2.7			2.3
Balance at January 1, 2018, as adjusted at Dec. 31, 2017	771.7	667.3	3.6		(15.2)	(179.0)	(49.6)	344.6
Net income	301.0				262.2			38.8
Cash dividends	(27.1)			(0.4)	(26.7)
Dividends paid to noncontrolling interest	(20.1)							(20.1)
Other comprehensive income (loss), net	(37.1)					(27.3)		(9.8)
Equity transactions with noncontrolling interest, net	0.6			0.4		0.1		0.1
Balance at Dec. 31, 2018	989.0	667.3	3.6		220.3	(206.2)	(49.6)	353.6
Net income	78.2				49.2			29.0
Cash dividends	(27.2)			(0.3)	(26.9)
Dividends paid to noncontrolling interest	(37.7)							(37.7)
Other comprehensive income (loss), net	(19.9)					(14.5)		(5.4)
Equity transactions with noncontrolling interest, net	(2.3)			$ 0.3	(3.2)			0.6
Balance at Dec. 31, 2019	$ 980.1	$ 667.3	$ 3.6		$ 239.4	$ (220.7)	$ (49.6)	$ 340.1