Stockholders' Equity - Schedule of Performance-based Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Weighted Average-Exercise Price
Granted, weighted-average grant date fair value (in dollars per share)	$ 5.63	$ 3.85	$ 7.12
Performance-Based Stock Options
Share
Outstanding beginning balance (in shares)	46,790
Granted (in shares)	0	0
Exercised (in shares)	0
Forfeited/cancelled (in shares)	(46,790)
Outstanding ending balance (in shares)	0	46,790
Weighted Average-Exercise Price
Outstanding beginning balance, weighted-average exercise price (in dollars per share)	$ 15.77
Granted, weighted-average grant date fair value (in dollars per share)	0
Exercised, weighted-average exercise price (in dollars per share)	0
Forfeited/cancelled, weighted-average exercise price (in dollars per share)	15.77
Outstanding ending balance, weighted-average exercise price (in dollars per share)	$ 0	$ 15.77
Weighted-Average Remaining Contractual Term
Outstanding weighted average contractual life (in years)	0 years	6 years 9 months 29 days
Aggregate Intrinsic Value
Beginning outstanding aggregate intrinsic value	$ 0
Exercised, aggregate intrinsic value	0
Ending outstanding aggregate intrinsic value	$ 0	$ 0