Corporate Restructuring (Details) - USD ($) $ in Thousands			3 Months Ended		7 Months Ended
	Nov. 30, 2021	Sep. 15, 2021	Sep. 30, 2022	Mar. 31, 2022	Mar. 31, 2022
Corporate Restructuring
Reduction in workforce (as a percent)	75.00%	75.00%
Cash expenses related to the costs of employee severance				$ 17,100	$ 17,100
Restructuring costs				9,324	29,500
Non-cash charges related to modification of equity-awards for terminated and remaining employee				15,900
Forecast
Corporate Restructuring
Cash expenses related to the costs of employee severance			$ 3,500
Restructuring costs			800
Non-cash charges related to modification of equity-awards for terminated and remaining employee			$ 2,700
Research and development
Corporate Restructuring
Restructuring costs				4,700	15,300
Selling, general and administrative
Corporate Restructuring
Restructuring costs				4,600	14,200
Severance
Corporate Restructuring
Employee-related separation costs				9,300
Restructuring costs					29,500
Cash charges related to modification of equity-awards for terminated and remaining employee				4,800	16,300
Non-cash charges related to modification of equity-awards for terminated and remaining employee				4,500	$ 13,200
Minimum
Corporate Restructuring
Employee-related separation costs				$ 33,000