Stockholders' Equity - Preferred Stock (Details) $ / shares in Units, $ in Millions		12 Months Ended
	Dec. 31, 2014 $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 $ / shares	Dec. 13, 2016 USD ($) shares
Class of Stock [Line Items]
Preferred stock authorized (in shares)		5,000,000
Dividend price (in dollars per share) | $ / shares					$ 22.85
Gain (loss) on settlement of temporary equity | $		$ 0.0	$ 103.0	$ 0.0
Gain on amendment of Series B Convertible Preferred Stock | $		0.0	32.9	0.0
Non-cash change in fair value of preferred stock redemption liability | $		$ 0.0	$ 5.0	$ 0.0
MacDermid
Class of Stock [Line Items]
Common stock issued in connection with exchange of PDH common stock (in shares)		1
Common Stock
Class of Stock [Line Items]
Common shares declared for dividend (in shares)				10,050,290
Share price (in dollars per share) | $ / shares	$ 10.00				$ 10.00
Series A Preferred Stock To Common Stock
Class of Stock [Line Items]
Preferred stock to common stock conversion ratio		1
Preferred stock to common stock conversion period, term of optional extension		3 years
Stock Dividends To Series A Preferred Stock Shareholders
Class of Stock [Line Items]
Common shares declared for dividend (in shares)	10,050,290
Appreciation of the market price of our common stock	20.00%				20.00%
Dividend price (in dollars per share) | $ / shares	$ 22.85
Stock Dividends To Series A Preferred Stock Shareholders | Weighted Average | Common Stock
Class of Stock [Line Items]
Share price (in dollars per share) | $ / shares	$ 23.16				$ 23.16
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock authorized (in shares)		2,000,000
Preferred stock issued (in shares)		2,000,000	2,000,000
Preferred stock outstanding (in shares)		2,000,000	2,000,000
Series A Preferred Stock | Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends (in shares) | $ / shares		$ 0	$ 0	$ 0
Series A Preferred Stock | Founder Entities
Class of Stock [Line Items]
Preferred stock outstanding (in shares)		2,000,000
Redeemable Series B Preferred Stock
Class of Stock [Line Items]
Temporary equity designated (in shares)						600,000
Series B Preferred Stock | Arysta
Class of Stock [Line Items]
Convertible preferred stock, number of equity instruments (in shares)						5,500,000
Make whole payment | $						$ 460.0
Gain (loss) on settlement of temporary equity | $			$ 103.0
Gain on amendment of Series B Convertible Preferred Stock | $			32.9
Non-cash change in fair value of preferred stock redemption liability | $			$ 5.0