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Property and Equipment - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Property Plant And Equipment [Line Items]      
Land $ 10,875 $ 7,179  
Leasehold improvements 439 14,546  
Right of Use Asset 6,109 11,760  
Adjustment to Remove The Prior Lease Liability 500    
Depreciation expense 23,100 $ 20,100 $ 13,900
Lease Agreement Termination [Member]      
Property Plant And Equipment [Line Items]      
Right of Use Asset 4,700    
Land and Building [Member]      
Property Plant And Equipment [Line Items]      
Acquisition Costs 17,500    
Land 3,400    
Investment Building and Building Improvements 13,800    
Leasehold Improvements      
Property Plant And Equipment [Line Items]      
Acquisition Costs 11,000    
Leasehold improvements $ 11,000