Leases - Lease Terms and Discount Rates (Details)	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	7 years 10 days	6 years 8 months 19 days
Finance Lease, Weighted Average Remaining Lease Term	8 months 15 days	1 year 8 months 4 days
Operating Lease, Weighted Average Discount Rate, Percent	5.30%	5.37%
Finance Lease, Weighted Average Discount Rate, Percent	3.27%	3.23%