CONDENSED CONSOLIDATED STATEMENTS Of CHANGES In STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Total Stockholders' Equity	Preferred Stock	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income	Non- controlling Interests
Balance at Dec. 31, 2018	$ 2,181.1	$ 2,109.2	$ 0.0	$ 2.9	$ 4,062.1	$ (3.5)	$ (1,195.4)	$ (756.9)	$ 71.9
Balance (in shares) at Dec. 31, 2018			2,000,000	289,316,170		341,967
Increase (Decrease) in Stockholders' Equity
Net income	23.9	23.2					23.2		0.7
Other comprehensive income (loss), net of taxes	67.4	67.4						67.4
Arysta Sale	411.0	457.6			(5.7)			463.3	(46.6)
Exercise/ vesting of share based compensation	(1.9)	(1.9)				$ (1.9)
Exercise/ vesting of share based compensation (in shares)				1,592,815		170,989
Conversion of shares		27.3		$ 0.1	41.1			(13.9)	(27.3)
Conversion of shares (shares)				4,019,710
Issuance of common stock under ESPP	0.3	0.3			0.3
Issuance of common stock under ESPP (in shares)				26,398
Repurchases of common stock	(433.7)	(433.7)		$ (0.4)			(433.3)
Repurchases of common stock (in shares)				37,000,000
Equity compensation expense	7.3	7.3			7.3
Changes in non-controlling interests	(0.2)								(0.2)
Balance at Mar. 31, 2019	2,255.2	2,256.7	$ 0.0	$ 2.6	4,105.1	$ (5.4)	(1,605.5)	(240.1)	(1.5)
Balance (in shares) at Mar. 31, 2019			2,000,000	257,955,093		512,956
Balance at Dec. 31, 2019	2,219.3	2,220.9	$ 0.0	$ 2.6	4,114.2	$ (78.9)	(1,536.5)	(280.5)	(1.6)
Balance (in shares) at Dec. 31, 2019			2,000,000	258,428,333		8,277,198
Increase (Decrease) in Stockholders' Equity
Net income	8.6	8.6					8.6
Other comprehensive income (loss), net of taxes	(54.4)	(54.4)						(54.4)
Exercise/ vesting of share based compensation	(1.7)	(1.7)			0.2	$ (1.9)
Exercise/ vesting of share based compensation (in shares)				475,987		162,333
Conversion of shares (shares)			(2,000,000)	2,000,000
Issuance of common stock under ESPP	0.3	0.3			0.3
Issuance of common stock under ESPP (in shares)				28,689
Repurchases of common stock	(33.1)	(33.1)				$ (33.1)
Repurchases of common stock (in shares)						3,742,488
Equity compensation expense	2.4	2.4			2.4
Balance at Mar. 31, 2020	$ 2,141.4	$ 2,143.0	$ 0.0	$ 2.6	$ 4,117.1	$ (113.9)	$ (1,527.9)	$ (334.9)	$ (1.6)
Balance (in shares) at Mar. 31, 2020			0	260,933,009		12,182,019