XML 96 R63.htm IDEA: XBRL DOCUMENT
v3.21.4

BUSINESS SEGMENTS (Summary of Certain Financial Information from Continuing Operations by Reportable Segment and Major Product) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Nov. 30, 2021 | Nov. 30, 2020 | Aug. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Net sales | $ 1,981,801 | $ 1,391,803 |
Adjusted EBITDA from continuing operations | 314,022 | 143,633 |
Total assets | 4,725,258 |  | $ 4,638,671
Segments | Continuing Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 1,981,801 | 1,391,803 |
Adjusted EBITDA from continuing operations | 314,022 | 143,633 |
Total assets | 4,725,258 | 4,638,671 |
Segments | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 1,653,622 | 1,195,013 |
Adjusted EBITDA from continuing operations | 268,524 | 155,634 |
Total assets | 3,389,890 | 3,221,465 |
Segments | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 329,056 | 194,596 |
Adjusted EBITDA from continuing operations | 79,832 | 14,470 |
Total assets | 736,872 | 729,766 |
Segments | Unaffiliated Customers |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 1,981,801 | 1,391,803 |
Segments | Unaffiliated Customers | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 1,653,622 | 1,195,013 |
Segments | Unaffiliated Customers | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 328,562 | 194,185 |
Segments | Raw materials |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 360,052 | 213,067 |
Segments | Raw materials | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 353,092 | 210,237 |
Segments | Raw materials | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 6,960 | 2,830 |
Segments | Steel Products |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 918,187 | 609,112 |
Segments | Steel Products | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 675,042 | 457,657 |
Segments | Steel Products | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 243,145 | 151,455 |
Segments | Downstream products |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 584,468 | 471,502 |
Segments | Downstream products | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 514,396 | 437,029 |
Segments | Downstream products | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 70,072 | 34,473 |
Segments | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 119,094 | 98,122 |
Segments | Other | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 111,092 | 90,090 |
Segments | Other | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 8,385 | 5,427 |
Segments | Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | (877) | 2,194 |
Adjusted EBITDA from continuing operations | (34,334) | (26,471) |
Segments | Corporate | Unaffiliated Customers |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | (383) | 2,605 |
Segments | Corporate | Raw materials |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 0 | 0 |
Segments | Corporate | Steel Products |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 0 | 0 |
Segments | Corporate | Downstream products |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 0 | 0 |
Segments | Corporate | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | (383) | 2,605 |
Segments | Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 598,496 | 687,440 |
Intersegment |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 0 | 0 |
Intersegment | North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 0 | 0 |
Intersegment | Europe |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 494 | 411 |
Intersegment | Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | $ (494) | $ (411) |

X
- Definition It represents non-GAAP financial measures of adjusted operating profit (loss) from continuing operations. + References No definition available. + Details
Name: | cmc_AdjustedOperatingProfitLossFromContinuingOperation
Namespace Prefix: | cmc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
Name: | us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentContinuingOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_NorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=cmc_UnaffiliatedCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cmc_RawMaterialProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cmc_SteelProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cmc_DownstreamProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cmc_OtherProductMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_MaterialReconcilingItemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |