XML 61 R49.htm IDEA: XBRL DOCUMENT
v3.20.4

CREDIT ARRANGEMENTS (Narrative) (Details) | Nov. 30, 2020 USD ($) | Nov. 30, 2020 PLN (zł) | Aug. 31, 2020 USD ($) | Aug. 31, 2020 PLN (zł)
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Financial liabilities | $ 1,093,754,000 |  | $ 1,092,266,000 |
CMCP |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit facility current borrowing capacity | zł |  | zł 275,000,000.0 |  |
CMCP | Poland Term Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit facility, amount drawn | 0 |  | 0 |
Revolving credit facility current borrowing capacity | 73,200,000 |  |  |
Stand by letters of credit outstanding amount | 800,000 |  | 800,000 |
Term loan, maximum principal amount | 66,600,000 | 250,000,000.0 |  |
Financial liabilities | 39,900,000 | 150,000,000.0 | 40,700,000 | zł 150,000,000.0
Revolving credit facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit facility, amount drawn | 0 |  | 0 |
Revolving credit facility current borrowing capacity | 350,000,000.0 |  | 350,000,000.0 |
Revolving credit facility | Poland Term Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Financial liabilities | 39,944,000 |  | 40,713,000 |
Stand-by letters of credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stand by letters of credit outstanding amount | 3,000,000.0 |  | 3,000,000.0 |
U.S. Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Advances outstanding under transfer of receivables programs | 0 |  | 0 |
Poland Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Transfer of accounts receivable program limit | 58,600,000 | zł 220,000,000.0 |  |
Advances outstanding under transfer of receivables programs | $ 0 |  | $ 0 |

X
- Definition Transfer of Accounts Receivable Program, Face Amount + References No definition available. + Details
Name: | cmc_TransferofAccountsReceivableProgramFaceAmount
Namespace Prefix: | cmc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Transfers of Accounts Receivable Outstanding + References No definition available. + Details
Name: | cmc_TransfersofAccountsReceivableOutstanding
Namespace Prefix: | cmc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of short-term and long-term debt and lease obligation. + 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 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
Name: | us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=cmc_CmcpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=cmc_PolandTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cmc_U.S.ProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cmc_PolandProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |