The number of locations under collective bargaining arrangements.

No definition available.

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- Definition

The percentage of employees covered by a collective bargaining agreement as of the balance sheet date.

+ References

No definition available.

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- Definition

Percentage of net revenue of the entity's external sales accounted for by the reportable unit.

+ References

No definition available.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (16)(c)
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

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- References

No definition available.

+ Details

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- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

+ Details

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Description of the Business and Summary of Significant Accounting Policies (Description of the Business) (Details) $ in Thousands		12 Months Ended
	Apr. 01, 2022	Dec. 31, 2022 USD ($) segment item	Dec. 31, 2021 USD ($)	Dec. 31, 2020
Segment Reporting Information
Number of reportable segments \| segment		3
Workforce represented by collective bargaining agreements (as a percent)		5.00%
Number of locations under collective bargaining arrangements \| item		6
Redeemable noncontrolling interests		$ 181,503	$ 211,414
Steel Operations
Segment Reporting Information
Percentage of external net sales		65.00%	72.00%	74.00%
Metals Recycling Operations
Segment Reporting Information
Percentage of external net sales		10.00%	12.00%	11.00%
Steel Fabrication Operations
Segment Reporting Information
Percentage of external net sales		19.00%	10.00%	9.00%
United Steel Supply, LLC \| Steel Operations
Segment Reporting Information
Noncontrolling interest, ownership percentage	87.50%
Mesabi Nugget
Segment Reporting Information
Noncontrolling interest, ownership percentage		85.00%	85.00%
Redeemable noncontrolling interests		$ 111,200	$ 111,200