Summary of Significant Accounting Policies - Summary of Expected Useful Life of Property, Plant and Equipment (Details)	12 Months Ended
	Mar. 31, 2021
Buildings and Greenhouses | Minimum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	20 years
Buildings and Greenhouses | Maximum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	50 years
Leasehold Improvements | Minimum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	3 years
Leasehold Improvements | Maximum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	20 years
Production and Warehouse Equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	5 years
Production and Warehouse Equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	30 years
Computer Equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	3 years
Computer Equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	10 years
Office and Lab Equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	3 years
Office and Lab Equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Expected useful life of property, plant and equipment	10 years