Stockholders' Equity (Details)	1 Months Ended	3 Months Ended
	Jul. 31, 2015 shares	Mar. 31, 2016 item director $ / shares shares	Dec. 31, 2015 shares
Stockholders' Equity
Authorized common stock (in shares)		400,000,000	400,000,000
Number of votes entitled by holders of common stock for each share of common stock | item		1
Common stock, shares issued		50,562,176	49,940,548
Common stock, shares outstanding		49,900,795	49,528,214
Number of shares issuable upon exercise of warrants		15,983,072
Exercise price (in dollars per share) | $ / shares		$ 11.50
Number of warrants outstanding		15,983,072
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		9,823,072
Number of warrants repurchased		1,201,928
Private placement
Stockholders' Equity
Number of warrants outstanding		6,160,000