Stockholder's Equity - Stock Options, Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Pre-2017 Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs	$ 1,235
2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs	2,400,000
Employee Stock Option | Pre-2017 Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	200,000	$ 900,000
Employee Stock Option | 2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	3,000,000	$ 4,900,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 68,000