LEASE COMMITMENTS - Future Minimum Rental Commitments under Non-cancelable Operating Leases (Details) $ in Thousands	Aug. 31, 2017 USD ($)
Operating lease payments
2018	$ 561,743
2019	505,648
2020	451,870
2021	405,222
2022	353,254
Thereafter	1,429,137
Operating lease payments	3,706,874
Operating sublease income
2018	(25,881)
2019	(24,261)
2020	(20,484)
2021	(14,796)
2022	(6,695)
Thereafter	(44,368)
Operating sublease income	$ (136,485)