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QUARTERLY FINANCIAL INFORMATION (Summary of Reclassifications on Cash Flow Statement) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 30, 2017 | Feb. 28, 2018 | May 31, 2018 | Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |
Net cash provided by (used in) operating activites | $ (10,163) | $ 59,079 | $ 90,765 | $ 119,454 | $ 123,021 | $ 142,141
Investing Activities: |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  | (23,895) | (23,895) |  |
Additions to property and equipment | (19,752) | (46,233) | (74,788) | (98,109) | (135,294) | (77,700)
Short-term investments | (39,339) | (66,388) | (72,953) | (77,997) |  |
Proceeds from Settlements of short-term investments |  | 7,643 | 19,063 | 45,693 |  |
Deposits for land purchase option agreements |  |  | 300 | (100) | (300) | (442)
Proceeds from disposal of property and equipment | 20 | 54 | 93 | 629 | 377 | 86
Net cash provided by (used in) investing activities | (59,071) | (104,924) | (152,180) | (153,779) | (135,217) | (78,175)
Net cash provided by (used in) financing activities | (5,296) | (21,859) | (12,389) | (27,817) | (21,970) | (17,070)
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 2,021 | (1,142) | (985) | (6,656) | (2,838) | (2,777)
Net increase (decrease) in cash, cash equivalents, and restricted cash | (72,509) | (68,846) | (74,789) | (68,798) | (37,004) | 44,119
Cash, cash equivalents, and restricted cash at beginning of period | 165,712 | 165,712 | 165,712 | 165,712 | 202,716 | 158,597
Cash, cash equivalents, and restricted cash at end of period | 93,203 | 96,866 | 90,923 | 96,914 | 165,712 | $ 202,716
Previously Reported [Member] |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |
Net cash provided by (used in) operating activites | (10,163) | 59,079 | 90,765 |  |  |
Investing Activities: |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  | (23,895) |  |  |
Additions to property and equipment | (19,752) | (46,233) | (74,788) |  |  |
Deposits for land purchase option agreements |  |  | 300 |  |  |
Proceeds from disposal of property and equipment | 20 | 54 | 93 |  |  |
Net cash provided by (used in) investing activities | (19,732) | (46,179) | (98,290) |  |  |
Net cash provided by (used in) financing activities | (5,296) | (21,859) | (12,389) |  |  |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 2,021 | (1,142) | (985) |  |  |
Net increase (decrease) in cash, cash equivalents, and restricted cash | (33,170) | (10,101) | (20,899) |  |  |
Cash, cash equivalents, and restricted cash at beginning of period | 165,712 | 165,712 | 165,712 | $ 165,712 |  |
Cash, cash equivalents, and restricted cash at end of period | 132,542 | 155,611 | 144,813 |  | $ 165,712 |
Reclassified [Member] |  |  |  |  |  |
Investing Activities: |  |  |  |  |  |
Short-term investments | (39,339) | (66,388) | (72,953) |  |  |
Proceeds from Settlements of short-term investments |  | 7,643 | 19,063 |  |  |
Net cash provided by (used in) investing activities | (39,339) | (58,745) | (53,890) |  |  |
Net increase (decrease) in cash, cash equivalents, and restricted cash | (39,339) | (58,745) | (53,890) |  |  |
Cash, cash equivalents, and restricted cash at end of period | $ (39,339) | $ (58,745) | $ (53,890) |  |  |

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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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