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Stock Acquisition Rights, Stock Options and Warrants - Summary of Performance Stock Activity (Details) - Performance-Based Restricted Stock Units - $ / shares
1 Months Ended 12 Months Ended
Sep. 30, 2020
Feb. 28, 2020
Jan. 31, 2020
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Performance Stock            
Beginning stock outstanding (in shares)       75,049    
Granted (in shares) 91,216 95,538   0    
Vested (in shares)       0    
Forfeited (in shares)     (120,445) 0 (47,768)  
Ending stock outstanding (in shares)       75,049 75,049  
Weighted Average Grant Day Fair Value            
Beginning outstanding (in dollars per share)       $ 58.65    
Granted (in dollars per share)       0 $ 58.65 $ 46.23
Vested (in dollars per share)       0    
Forfeited (in dollars per share)       0    
Ending outstanding (in dollars per share)       $ 58.65 $ 58.65