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BUSINESS SEGMENTS (Summary of Certain Financial Information from Continuing Operations by Reportable Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
May. 31, 2015 | May. 31, 2014 | May. 31, 2015 | May. 31, 2014 | Aug. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | $ 1,506,002 | $ 1,738,593 | $ 4,577,109 | $ 4,953,129 |
Adjusted operating profit (loss) |  | 125,978 | 58,135 | 311,491 | 163,908 |
Total assets |  | 3,579,726 |  | 3,579,726 |  | $ 3,688,520
Continuing Operations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 1,506,002 | 1,738,593 | 4,577,109 | 4,953,129 |
Adjusted operating profit (loss) |  | 125,978 | 58,135 | 311,491 | 163,908 |
Total assets | [1] | 3,501,641 |  | 3,501,641 |  | 3,681,510
Americas Recycling |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 194,081 | 287,533 | 691,382 | 874,155 |
Adjusted operating profit (loss) |  | (1,970) | (1,085) | (3,285) | (1,109) |
Total assets | [1] | 266,913 |  | 266,913 |  | 296,564
Americas Mills |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 244,632 | 308,878 | 796,218 | 878,013 |
Adjusted operating profit (loss) |  | 84,237 | 74,063 | 258,108 | 183,939 |
Total assets | [1] | 706,229 |  | 706,229 |  | 647,437
Americas Fabrication |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 415,763 | 406,066 | 1,165,679 | 1,082,630 |
Adjusted operating profit (loss) |  | 22,878 | 1,244 | 31,642 | (1,869) |
Total assets | [1] | 730,285 |  | 730,285 |  | 691,765
International Mill |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 156,286 | 207,364 | 472,364 | 617,101 |
Adjusted operating profit (loss) |  | 6,146 | 2,047 | 11,188 | 25,647 |
Total assets | [1] | 414,914 |  | 414,914 |  | 466,449
International Marketing and Distribution |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 494,639 | 528,559 | 1,447,316 | 1,489,686 |
Adjusted operating profit (loss) |  | 37,669 | 2,023 | 71,599 | 8,552 |
Total assets | [1] | 953,750 |  | 953,750 |  | 949,016
Corporate |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 601 | 193 | 4,150 | 11,544 |
Adjusted operating profit (loss) |  | (19,502) | (18,227) | (55,513) | (51,340) |
Total assets | [1] | 1,001,085 |  | 1,001,085 |  | 1,100,995
Eliminations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 0 | 0 | 0 | 0 |
Adjusted operating profit (loss) |  | (3,480) | (1,930) | (2,248) | 88 |
Total assets | [1] | (571,535) |  | (571,535) |  | $ (470,716)
Segments | Continuing Operations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 1,506,002 | 1,738,593 | 4,577,109 | 4,953,129 |
Segments | Americas Recycling |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 225,096 | 335,104 | 800,234 | 1,015,574 |
Segments | Americas Mills |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 446,821 | 527,574 | 1,400,517 | 1,465,574 |
Segments | Americas Fabrication |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 417,895 | 409,425 | 1,174,793 | 1,093,533 |
Segments | International Mill |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 156,318 | 207,558 | 472,396 | 618,070 |
Segments | International Marketing and Distribution |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 518,244 | 549,745 | 1,521,288 | 1,533,551 |
Segments | Corporate |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 601 | 193 | 4,150 | 11,544 |
Segments | Eliminations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | (258,973) | (291,006) | (796,269) | (784,717) |
Intersegment | Continuing Operations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 0 | 0 | 0 | 0 |
Intersegment | Americas Recycling |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 31,015 | 47,571 | 108,852 | 141,419 |
Intersegment | Americas Mills |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 202,189 | 218,696 | 604,299 | 587,561 |
Intersegment | Americas Fabrication |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 2,132 | 3,359 | 9,114 | 10,903 |
Intersegment | International Mill |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 32 | 194 | 32 | 969 |
Intersegment | International Marketing and Distribution |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 23,605 | 21,186 | 73,972 | 43,865 |
Intersegment | Corporate |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 0 | 0 | 0 | 0 |
Intersegment | Eliminations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | $ (258,973) | $ (291,006) | $ (796,269) | $ (784,717) |
[1] | Excludes total assets from discontinued operations of $78.1 million at May 31, 2015 and $7.0 million at August 31, 2014.

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