Stock Compensation - Summary of Restricted Stock Unit Activity (Details) - RSUs	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Number of Shares
Balance as of beginning of period (in shares) | shares	11,615,884
Granted (in shares) | shares	3,534,142
Vested (in shares) | shares	(923,693)
Forfeited and canceled (in shares) | shares	(1,679,626)
Balance as of end of period (in shares) | shares	12,546,707
Weighted- Average Grant Date Fair Value
Balance as of beginning of period (in usd per share) | $ / shares	$ 2.44
Granted (in usd per share) | $ / shares	1.21
Vested (in usd per share) | $ / shares	2.94
Forfeited and canceled (in usd per share) | $ / shares	2.94
Balance as of end of period (in usd per share) | $ / shares	$ 1.99