Business, basis of presentation, new accounting standards and summary of significant accounting policies - Additional Information (Details) $ in Thousands			3 Months Ended
	May 06, 2022 shares	Apr. 14, 2022 USD ($)	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($)	May 05, 2022 shares	Dec. 31, 2021 shares
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Net loss			$ 49,021	$ 39,383
Current liabilities over current assets			180,400
Total liabilities over total assets			$ 140,600
Reverse stock split, conversion ratio			0.02
Reverse stock split, description			50-for-1 reverse stock split
Number of authorized shares of common stock | shares			12,000,000			12,000,000
Forecast [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Reverse stock split, conversion ratio	0.02
Reverse stock split, description	shares of our common stock outstanding was split at a ratio of 50-for-1
Number of authorized shares of common stock | shares	12,000,000.0				600,000,000.0
VitaCare Divestiture [Member] | Subsequent Event [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Proceeds from divestiture of business		$ 150,000
Contingent cash consideration from sale of business		7,000
Estimated minimum service fee commitment for remainder of fiscal year		5,200
Estimated minimum service fee commitment, due 2023		10,700
Estimated minimum service fee commitment, due 2024		13,400
Estimated minimum service fee commitment, due 2025		15,400
Estimated minimum service fee commitment, due 2026		16,200
Estimated minimum service fee commitment, due 2027		$ 5,500