Net Loss Per Share - Narrative (Details)			1 Months Ended	3 Months Ended		12 Months Ended
Net Loss Per Share - Narrative (Details)	Dec. 27, 2018	Dec. 26, 2018	Dec. 31, 2018	Mar. 31, 2021 class_of_stock shares	Mar. 31, 2020 shares	Dec. 31, 2018 shares
Subsidiary, Sale of Stock [Line Items]
Number of classes of stock outstanding \| class_of_stock				2
Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Conversion to common stock (in shares)					(1,600,000)
Common Stock
Subsidiary, Sale of Stock [Line Items]
Conversion to common stock (in shares)				6,285,715	8,000,000	14,285,715
Series B Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Preferred stock conversion ratio	0.20	0.20	0.20	0.20
Shares converted (in shares)				1,257,143	1,600,000