Acquisitions - Unaudited Pro Forma Revenue and Net Loss Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Business Combinations [Abstract]
Pro forma revenue	[1]	$ 295,025	$ 271,532	$ 322,393
Pro forma net loss	[1]	$ (241,382)	$ (237,162)	$ (299,199)

[1] As if the acquisition of Lemonaid was consummated on April 1, 2019.