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, 2015	$ 526.9	$ 667.3	$ 3.6		$ (155.6)	$ (197.0)	$ (49.6)	$ 258.2
Net income (loss)	(3.0)				(15.9)			12.9
Cash dividends	(48.7)			$ (0.2)	(26.9)			(21.6)
Other comprehensive loss, net	(30.9)					(24.9)		(6.0)
Equity transactions with noncontrolling interest, net	0.1			0.2	(0.1)
Balance at Dec. 31, 2016	444.4	667.3	3.6		(198.5)	(221.9)	(49.6)	243.5
Net income (loss)	302.6				207.5			95.1
Cash dividends	(45.3)			(0.3)	(26.9)			(18.1)
Other comprehensive 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 (loss)	301.0				262.2			38.8
Cash dividends	(47.2)			(0.4)	(26.7)			(20.1)
Other comprehensive 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