LEASES - Balance Sheet Components (Details) - USD ($) $ in Thousands	Nov. 30, 2020	Aug. 31, 2020
Assets:
Operating assets	$ 117,582	$ 114,905
Finance assets	53,561	50,642
Total leased assets	171,143	165,547
Operating lease liabilities:
Current	27,030	27,604
Long-term	98,881	95,810
Total operating lease liabilities	125,911	123,414
Finance lease liabilities:
Current	15,060	14,373
Long-term	37,421	35,851
Total finance lease liabilities	52,481	50,224
Total lease liabilities	$ 178,392	$ 173,638