Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended
	Jul. 31, 2015 $ / shares shares	Sep. 30, 2015 USD ($) item director $ / shares shares
Stockholders' Equity
Authorized common stock (in shares)		400,000,000
Number of votes entitled by holders of common stock for each share of common stock | item		1
Common stock, shares issued		49,940,548
Common stock, shares outstanding		49,940,548
Number of shares issuable upon exercise of warrants		16,790,233
Exercise price (in dollars per share) | $ / shares		$ 11.50
Number of warrants outstanding		16,790,233
Value of shares issued | $		$ 50,000
Rohm and Haas
Stockholders' Equity
Number of shares of Series A Preferred Stock issued as condition to consummation of business combination	1
Number of directors preferred stockholder is entitled to appoint if minimum ownership percentage of common stock is maintained | director		1
Minimum percentage of outstanding shares of voting and non-voting common stock to be held to entitle preferred stockholder to appoint director		10.00%
Public
Stockholders' Equity
Number of warrants outstanding		10,630,233
Number of warrants repurchased		394,767
Number of shares issued		4,878,048
Issue price of stock (in dollars per share) | $ / shares	$ 10.25
Value of shares issued | $		$ 50,000
Private placement
Stockholders' Equity
Number of warrants outstanding		6,160,000