Stock-Based Compensation - Summary Of Stock Option Activity (Details)	6 Months Ended
	Jun. 30, 2020 $ / shares shares
Number of Shares
Outstanding beginning balance (in shares) | shares	4,300,088
Granted (in shares) | shares	0
Exercised (in shares) | shares	0
Forfeited (in shares) | shares	(70,960)
Expired (in shares) | shares	(5,619)
Outstanding ending balance (in shares) | shares	4,223,509
Exercisable ending balance (in shares) | shares	4,086,657
Weighted Average Exercise Price
Outstanding beginning balance (in dollars per share) | $ / shares	$ 5.03
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	14.00
Expired (in dollars per share) | $ / shares	14.00
Outstanding ending balance (in dollars per share) | $ / shares	4.87
Exercisable ending balance (in dollars per share) | $ / shares	$ 4.57