Revenue - Summary of Revenues by End-Use Markets and Geography (Details) - USD ($) $ in Millions | 3 Months Ended |
Sep. 30, 2024 | Sep. 30, 2023 |
Disaggregation of Revenue [Line Items] | | |
Total net sales | $ 717.6 | $ 651.9 |
Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (28.3) | (20) |
United States | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 421.1 | 393.3 |
United States | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (10.9) | (5.7) |
Europe | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 140.3 | 107.4 |
Europe | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (5.8) | (4.3) |
Asia Pacific | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 94.4 | 103 |
Asia Pacific | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (11.7) | (10.1) |
Mexico | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 36.9 | 24.2 |
Mexico | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0 | 0 |
Canada | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 14.3 | 13.7 |
Canada | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0 | (0.1) |
Other | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 10.6 | 10.3 |
Other | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0.1 | 0.2 |
Aerospace and Defense | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 437.4 | 352.5 |
Aerospace and Defense | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (4.5) | (5) |
Medical | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 86.9 | 80 |
Medical | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (16) | (11) |
Energy | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 52.5 | 44.7 |
Energy | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0 | 0 |
Transportation | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 28.3 | 42 |
Transportation | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0 | 0 |
Industrial and Consumer | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 91.2 | 105 |
Industrial and Consumer | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (7.7) | (4) |
Distribution | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 21.3 | 27.7 |
Distribution | Intersegment | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | (0.1) | 0 |
Specialty Alloys Operations | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 645.1 | 570.1 |
Specialty Alloys Operations | United States | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 373.7 | 340.7 |
Specialty Alloys Operations | Europe | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 129.8 | 94.9 |
Specialty Alloys Operations | Asia Pacific | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 94.4 | 102.7 |
Specialty Alloys Operations | Mexico | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 29.1 | 14.4 |
Specialty Alloys Operations | Canada | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 10.5 | 9.3 |
Specialty Alloys Operations | Other | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 7.6 | 8.1 |
Specialty Alloys Operations | Aerospace and Defense | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 417.9 | 332.2 |
Specialty Alloys Operations | Medical | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 61.1 | 55.3 |
Specialty Alloys Operations | Energy | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 51.6 | 43.2 |
Specialty Alloys Operations | Transportation | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 26.4 | 40.1 |
Specialty Alloys Operations | Industrial and Consumer | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 88.1 | 99.3 |
Specialty Alloys Operations | Distribution | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0 | 0 |
Performance Engineered Products | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 100.8 | 101.8 |
Performance Engineered Products | United States | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 58.3 | 58.3 |
Performance Engineered Products | Europe | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 16.3 | 16.8 |
Performance Engineered Products | Asia Pacific | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 11.7 | 10.4 |
Performance Engineered Products | Mexico | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 7.8 | 9.8 |
Performance Engineered Products | Canada | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 3.8 | 4.5 |
Performance Engineered Products | Other | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 2.9 | 2 |
Performance Engineered Products | Aerospace and Defense | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 24 | 25.3 |
Performance Engineered Products | Medical | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 41.8 | 35.7 |
Performance Engineered Products | Energy | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 0.9 | 1.5 |
Performance Engineered Products | Transportation | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 1.9 | 1.9 |
Performance Engineered Products | Industrial and Consumer | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | 10.8 | 9.7 |
Performance Engineered Products | Distribution | Operating | | |
Disaggregation of Revenue [Line Items] | | |
Total net sales | $ 21.4 | $ 27.7 |