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v3.23.2

Description of the Business and Significant Accounting Policies (Description of the Business) (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 01, 2023 | Jun. 30, 2023 USD ($) | Jun. 30, 2022 | Jun. 30, 2023 USD ($) segment | Jun. 30, 2022 | Dec. 31, 2022 USD ($)
Segment Reporting Information |  |  |  |  |  |
Number of reportable segments | segment |  |  |  | 3 |  |
Redeemable noncontrolling interests |  | $ 171,212 |  | $ 171,212 |  | $ 181,503
United Steel Supply, LLC |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Acquisition of interest (as a percent) | 2.50% |  |  |  |  |
Percentage of voting equity interests remaining available | 10.00% |  |  |  |  |
United Steel Supply, LLC |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Noncontrolling interest, ownership percentage | 90.00% |  |  |  |  |
Steel Operations |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Percentage of external net sales |  | 67.00% | 67.00% | 65.00% | 67.00% |
Steel Operations | United Steel Supply, LLC |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Noncontrolling interest, ownership percentage | 90.00% |  |  |  |  |
Metals Recycling Operations |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Percentage of external net sales |  | 12.00% | 10.00% | 12.00% | 10.00% |
Steel Fabrication Operations |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Percentage of external net sales |  | 15.00% | 17.00% | 16.00% | 17.00% |
United Steel Supply, LLC |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Noncontrolling interest, ownership percentage | 90.00% |  |  |  |  | 87.50%
Redeemable noncontrolling interests |  | $ 60,000 |  | $ 60,000 |  | $ 70,300
Mesabi Nugget |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  | 85.50% |  | 85.50%
Redeemable noncontrolling interests |  | $ 111,200 |  | $ 111,200 |  | $ 111,200

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