Organization and Nature of Business; Basis of Presentation; Principles of Consolidation; Significant Accounting Policies - Narrative (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($)	Mar. 31, 2021	Dec. 31, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Impairment charges	$ 0		$ 0
Instrument warranty term	1 year
Kits and accessories warranty term	60 days
Gross margin	0.27	0.36
Lease extension	1 year
Lessor lease term	5 years
Instruments
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	5 years
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	1 year
Lease term	2 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	7 years
Lease term	6 years
2.50% Convertible notes due 2023 | Convertible notes
Property, Plant and Equipment [Line Items]
Interest rate	2.50%