Debt - Term Loan and Revolving Loan (Details) - Line of Credit - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Term Loan
Class of Stock [Line Items]
Maximum borrowing capacity	$ 25,000
Interest Rate	2.25%	2.25%
Revolver
Class of Stock [Line Items]
Interest Rate	2.25%	2.25%
Multi-Draw Facility
Class of Stock [Line Items]
Maximum borrowing capacity	$ 75,000
Interest Rate	3.50%	4.00%
Revolving Line of Credit | Revolver
Class of Stock [Line Items]
Maximum borrowing capacity	$ 25,000
Prime Rate | Term Loan
Class of Stock [Line Items]
Basis spread on variable rate	1.50%
Variable interest rate percentage, floor	2250.00%
Prime Rate | Revolving Line of Credit | Revolver
Class of Stock [Line Items]
Basis spread on variable rate	1.50%
Variable interest rate percentage, floor	2250.00%