Summary of Significant Accounting Policies - Useful Lives (Details)	12 Months Ended
	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Operating lease, renewal term	5 years
Minimum
Property, Plant and Equipment [Line Items]
Operating lease, term of contract	3 years
Maximum
Property, Plant and Equipment [Line Items]
Operating lease, term of contract	5 years
Building | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	25 years
Building | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	40 years
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	5 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	10 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	7 years
Vehicles
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years