Leases - Schedule of Minimum Lease Payments and Sublease Income (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Leases
Year 1	$ 169,383
Year 2	159,432
Year 3	149,816
Year 4	140,692
Year 5	133,134
Thereafter	571,234
Total lease payments	1,323,691
Less: interest and inflation	(430,944)
Present value of lease liabilities	892,747
Finance Leases
Year 1	9,473
Year 2	9,180
Year 3	8,834
Year 4	8,354
Year 5	6,288
Thereafter	51,095
Total lease payments	93,224
Less: interest and inflation	(34,566)
Present value of lease liabilities	$ 58,658