Transfer of Accounts Receivable Program, Face Amount

No definition available.

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Namespace Prefix:	cmc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Transfers of Accounts Receivable Outstanding

+ References

No definition available.

+ Details

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Namespace Prefix:	cmc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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- 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.

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Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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- Details

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CREDIT ARRANGEMENTS (Narrative) (Details)	Nov. 30, 2021 USD ($)	Nov. 30, 2021 PLN (zł)	Aug. 31, 2021 USD ($)	Aug. 31, 2021 PLN (zł)	Mar. 31, 2021 USD ($)
Debt Instrument [Line Items]
Financial liabilities	$ 1,072,475,000		$ 1,077,922,000
CMCP
Debt Instrument [Line Items]
Revolving credit facility, amount drawn	0		0
Revolving credit facility current borrowing capacity	73,000,000	zł 300,000,000
CMCP \| Poland Term Loan
Debt Instrument [Line Items]
Stand by letters of credit outstanding amount	900,000		5,700,000
Financial liabilities	44,100,000	181,000,000	49,700,000	zł 190,500,000
Poland Program
Debt Instrument [Line Items]
Transfer of accounts receivable program limit	70,100,000	288,000,000
Advances outstanding under transfer of receivables programs	30,000,000	zł 123,200,000	26,600,000	zł 101,700,000
Revolving credit facility \| Poland Term Loan
Debt Instrument [Line Items]
Financial liabilities	44,055,000		49,726,000
Revolving credit facility \| Credit Agreement Maturing March 2026
Debt Instrument [Line Items]
Revolving credit facility, amount drawn	0		0
Revolving credit facility current borrowing capacity					$ 400,000,000
Stand-by letters of credit
Debt Instrument [Line Items]
Stand by letters of credit outstanding amount	$ 3,000,000		$ 3,000,000