Net Loss Per Share - Narrative (Details)			1 Months Ended	3 Months Ended		9 Months Ended
Net Loss Per Share - Narrative (Details)	Dec. 27, 2018	Dec. 26, 2018	Apr. 30, 2021 shares	Sep. 30, 2021	Mar. 31, 2020 shares	Sep. 30, 2021 class_of_stock shares	Sep. 30, 2020 shares
Subsidiary, Sale of Stock [Line Items]
Number of classes of stock outstanding \| class_of_stock						2
Preferred stock conversion ratio				0.20		0.20
Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Conversion to common stock (in shares)						(1,257,143)	(1,600,000)
Common Stock
Subsidiary, Sale of Stock [Line Items]
Conversion to common stock (in shares)			6,285,715		8,000,000	6,285,715	8,000,000
Series B Preferred Stock \| Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Preferred stock conversion ratio	0.20	0.20				0.20
Shares converted (in shares)			1,257,143		1,600,000	1,257,143