Stock Based Compensation - Employee and Director Stock Option Activity (Details) - Employees and Directors	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Number of Shares
Beginning balance (in shares) | shares	3,616,314
Stock options granted (in shares) | shares	1,081,478
Stock options exercised (in shares) | shares	(395,181)
Stock options forfeited (in shares) | shares	(684,195)
Stock options expired (in shares) | shares	(271)
Ending balance (in shares) | shares	3,618,145
Vested (in shares) | shares	1,212,049
Exercisable (in shares) | shares	1,212,049
Weighted- Average Exercise Price
Beginning balance (in dollars per share) | $ / shares	$ 14.66
Stock options granted (in dollars per share) | $ / shares	18.27
Stock options exercised (in dollars per share) | $ / shares	14.13
Stock options forfeited (in dollars per share) | $ / shares	13.91
Stock options expired (in dollars per share) | $ / shares	48.00
Ending balance (in dollars per share) | $ / shares	13.55
Vested (in dollars per share) | $ / shares	13.79
Exercisable (in dollars per share) | $ / shares	$ 13.79