Leases Weighted Average Lease Terms and Discount Rates (Details)	Mar. 31, 2021	Mar. 31, 2020
Weighted-average remaining lease term
Operating leases	13 years 2 months 12 days	13 years 1 month 6 days
Finance leases	2 years 4 months 24 days	3 years
Weighted-average discount rate
Operating leases	6.06%	6.04%
Finance leases	5.52%	6.16%