Stockholders' Equity - Non-Controlling Interest (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 31, 2013	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Common stock originally issuable upon exchange (in shares)	8,774,527
Noncontrolling interest percentage		3.83%	6.01%	6.25%
Net income allocated to retaining holders			$ (5.9)	$ (1.4)
MacDermid
Business Acquisition [Line Items]
Equity instruments	$ 97.5
Common stock issued in connection with exchange of PDH common stock (in shares)		1
Net income allocated to retaining holders		$ 2.1
PDH
Business Acquisition [Line Items]
Common stock issued in connection with exchange of PDH common stock (in shares)		3,961,785