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Leases (Weighted Average Lease Term and Discount Rates) (Details)
Mar. 31, 2021
Mar. 31, 2020
Weighted Average Remaining Lease Term:    
Finance Leases 11 years 12 years
Operating Leases 8 years 8 years
Weighted Average Discount Rate:    
Finance Leases 11.47% 11.48%
Operating Leases 3.14% 3.18%