BASIS OF PRESENTATION - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Nov. 30, 2016 |
Nov. 30, 2015 |
Aug. 31, 2016 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
| Allowance for doubtful accounts receivable and unbilled services | $ 79,281 | $ 79,440 | |
| Accumulated depreciation | 1,752,468 | $ 1,730,025 | |
| New Accounting Pronouncement, Early Adoption [Line Items] | |||
| Income Tax Expense (Benefit) | 271,372 | $ 359,682 | |
| Net Cash Provided by (Used in) Financing Activities | (1,162,775) | (1,195,985) | |
| Net Cash Provided by (Used in) Operating Activities | 1,083,882 | 643,257 | |
| New Accounting Pronouncement, Early Adoption, Effect [Member] | |||
| New Accounting Pronouncement, Early Adoption [Line Items] | |||
| Income Tax Expense (Benefit) | $ 30,598 | ||
| Net Cash Provided by (Used in) Financing Activities | 31,952 | ||
| Net Cash Provided by (Used in) Operating Activities | $ 31,952 | ||