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Joint Ventures and Noncontrolling Interests (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2021 | Mar. 30, 2020
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Feralloy Processing Company |  |  |
Joint Ventures and Noncontrolling Interests |  |  |
Payments for acquired equity interest | $ 8.0 |  |
Carrying value of noncontrolling interest | 1.1 |  |
Increase to additional paid in capital for the direct tax effects resulting from the transaction | $ 1.4 |  |
Ownership percentage acquired | 49.00% |  |
Ownership percentage in consolidated investments other than equity method investment | 100.00% |  | 51.00%
Indiana Pickling & Processing Company |  |  |
Joint Ventures and Noncontrolling Interests |  |  |
Ownership percentage in consolidated investments other than equity method investment |  | 56.00% |
Valex Corp. | South Korea |  |  |
Joint Ventures and Noncontrolling Interests |  |  |
Ownership percentage in consolidated investments other than equity method investment |  | 96.00% |
Minimum |  |  |
Joint Ventures and Noncontrolling Interests |  |  |
Ownership percentage in equity method investment |  | 20.00% |
Percentage of ownership for consolidation of financial statements |  | 50.00% |
Maximum |  |  |
Joint Ventures and Noncontrolling Interests |  |  |
Ownership percentage in equity method investment |  | 50.00% |

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