Series B Convertible Preferred Stock and Stockholders' Equity (Details)			3 Months Ended		12 Months Ended
	Jun. 13, 2020 USD ($) $ / shares shares	Jul. 31, 2015 director shares	Mar. 31, 2021 USD ($) vote $ / shares shares	Mar. 31, 2020 USD ($)	Dec. 31, 2015 shares	Dec. 31, 2020 USD ($) $ / shares shares	Jul. 31, 2020 $ / shares shares	Dec. 31, 2018 USD ($)	Feb. 28, 2014 shares
Class of Warrant or Right [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares			$ 0.0001			$ 0.0001
Preferred stock, shares outstanding (in shares)			1			1
Authorized common stock (in shares)			400,000,000			400,000,000
Par value of common stock (in dollars per share) | $ / shares			$ 0.0001			$ 0.0001
Number of votes entitled by holders of common stock for each share of common stock | vote			1
Common stock, shares outstanding (in shares)			52,390,095			52,430,947
Number of shares issuable upon exercise of warrants (in shares)							15,983,072
Exercise price (in dollars per share) | $ / shares							$ 11.50
Number of warrants outstanding (in shares)									15,983,072
Rohm and Haas
Class of Warrant or Right [Line Items]
Number of shares of Series A Preferred Stock issued as condition to consummation of business combination (in shares)		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%
Series B Convertible Stock
Class of Warrant or Right [Line Items]
Dividends | $			$ 6,000,000.0	$ 0
Accrued dividends | $			$ 0			$ 0
Preferred stock, convertible, conversion price (in dollars per share) | $ / shares	$ 5.00
Series B Convertible Stock | Maximum
Class of Warrant or Right [Line Items]
Preferred stock issued (in shares)			30,583,399			31,048,800
Series B Convertible Stock | Paid in-kind
Class of Warrant or Right [Line Items]
Dividends | $			$ 3,000,000.0
Series B Convertible Stock | Cash
Class of Warrant or Right [Line Items]
Dividends | $			$ 3,000,000.0
Series B-1 Convertible Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock, shares outstanding (in shares)			0
Series B-2 Convertible Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock, shares outstanding (in shares)			0
Public warrants
Class of Warrant or Right [Line Items]
Number of warrants outstanding (in shares)									9,823,072
Number of warrants repurchased (in shares)					1,201,928
Private placement warrants
Class of Warrant or Right [Line Items]
Dividend rate increase	2.00%
Number of warrants outstanding (in shares)									6,160,000
Private placement warrants | Dividends within first anniversary
Class of Warrant or Right [Line Items]
Percentage payable in cash	50.00%
Percentage payable in kind	50.00%
Private placement warrants | Dividends after first anniversary
Class of Warrant or Right [Line Items]
Percentage payable in cash	50.00%
Percentage payable in kind	37.50%
Percentage payable in cash or kind	12.50%
Private placement warrants | Convertible preferred stock
Class of Warrant or Right [Line Items]
Sale of stock, consideration received on transaction | $	$ 150,000,000
Private placement warrants | Series B Convertible Stock
Class of Warrant or Right [Line Items]
Preferred stock issued (in shares)	150,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.0001
Convertible preferred stock, shares issued upon conversion (in shares)	150,000
Liquidation preference (in dollars per share) | $ / shares	$ 1,000
Cumulative dividend rate	16.00%
Private placement warrants | Series B-1 Convertible Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock issued (in shares)	150,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.0001
Liquidation preference (in dollars per share) | $ / shares	$ 1,000
Cumulative dividend rate	16.00%
Private placement warrants | Series B-2 Convertible Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock issued (in shares)	150,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.0001
ATM Facility
Class of Warrant or Right [Line Items]
Maximum aggregate offering of common stock | $								$ 30,000,000