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Share-based Payments - Restricted Stock Units (Details) - Restricted Stock [Member] - USD ($)
9 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Number of Shares [Roll Forward]    
Non-vested at beginning of period (in shares) 201,983  
Granted (in shares) 251,801 113,483
Vested (in shares) (94,320)  
Forfeited (in shares) (4,980)  
Non-vested at end of period (in shares) 354,484  
Weighted Average Grant Date Fair Value [Roll Forward]    
Non-vested at beginning of period (in dollars per share) $ 20.06  
Granted (in dollars per share) 16.48  
Vested (in dollars per share) 21.32  
Forfeited (in dollars per share) 17.65  
Non-vested at end of period (in dollars per share) $ 17.22  
Estimated fair value of awards granted $ 4,150,000 $ 2,112,000
Total unrecognized compensation expense $ 4,589,000  
Weighted average vesting period over which compensation expense is expected to be recognized 1 year 8 months 12 days