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Segment and Geographic Information - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |  |  |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | Chief Executive Officer [Member] |  |  |  |  |
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description | We use Segment Adjusted EBITDA as the measure of earnings to assess the performance of each segment and determine the resources to be allocated to the segments. |  |  |  |  |
Sales | $ 6,667.6 |  | $ 6,631.0 |  | $ 6,344.2 |
Less: Intersegment sales | 542.7 |  | 551.5 |  | 541.8 |
Net external sales | 6,124.9 |  | 6,079.5 |  | 5,802.4 |
Segment Reporting, Cost of Goods Sold, Amount | 5,016.6 | [1] | 5,073.0 | [2] | 4,709.4 | [3]
Segment Reporting, Selling, General and Administrative Expenses, Amount | 367.2 | [4] | 347.3 | [5] | 326.6 | [6]
Segment Reporting, Other Segment Item, Amount | (8.1) | [7] | (34.1) | [8] | 19.1 | [9]
Segment adjusted EBITDA | 749.2 |  | 693.3 |  | 747.3 |
Depreciation and amortization | 469.7 |  | 487.2 |  | 492.1 |
Capital expenditures | 248.0 |  | 194.6 |  | 171.4 |
Total Assets | 5,059.9 |  | 5,356.3 |  | 5,469.4 |
Depreciation and tooling amortization | $ 328.5 |  | $ 346.0 |  | $ 350.4 |
Segment Reporting, Other Segment Item, Composition, Description | (c) Other segment expense (income), net primarily consists of the net impact of interest income and foreign exchange gains and losses. |  | (c) Other segment expense (income), net primarily consists of the net impact of interest income and foreign exchange gains and losses. |  | (c) Other segment expense (income), net primarily consists of the net impact of interest income and foreign exchange gains and losses, as well as amounts related to the Malvern Fire and Tekfor acquisition. |
Driveline [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales | $ 4,253.3 |  | $ 4,176.7 |  | $ 4,063.5 |
Less: Intersegment sales | 1.4 |  | 0.2 |  | 0.0 |
Net external sales | 4,251.9 |  | 4,176.5 |  | 4,063.5 |
Segment Reporting, Cost of Goods Sold, Amount | 3,392.8 | [1] | 3,396.1 | [2] | 3,305.0 | [3]
Segment Reporting, Selling, General and Administrative Expenses, Amount | 287.9 | [4] | 263.2 | [5] | 256.4 | [6]
Segment Reporting, Other Segment Item, Amount | (7.0) | [7] | (26.4) | [8] | (8.8) | [9]
Segment adjusted EBITDA | 578.2 |  | 543.6 |  | 510.9 |
Depreciation and amortization | 246.5 |  | 260.3 |  | 272.7 |
Capital expenditures | 140.3 |  | 105.9 |  | 103.3 |
Total Assets | 2,420.6 |  | 2,554.3 |  | 2,542.0 |
Driveline [Member] | Cost of Sales [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Depreciation and tooling amortization | 210.2 |  | 222.7 |  | 232.0 |
Driveline [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Depreciation and tooling amortization | 16.4 |  | 16.0 |  | 14.8 |
Metal Forming [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales | 2,414.3 |  | 2,454.3 |  | 2,280.7 |
Less: Intersegment sales | 541.3 |  | 551.3 |  | 541.8 |
Net external sales | 1,873.0 |  | 1,903.0 |  | 1,738.9 |
Segment Reporting, Cost of Goods Sold, Amount | 1,623.8 | [1] | 1,676.9 | [2] | 1,404.4 | [3]
Segment Reporting, Selling, General and Administrative Expenses, Amount | 79.3 | [4] | 84.1 | [5] | 70.2 | [6]
Segment Reporting, Other Segment Item, Amount | (1.1) | [7] | (7.7) | [8] | 27.9 | [9]
Segment adjusted EBITDA | 171.0 |  | 149.7 |  | 236.4 |
Depreciation and amortization | 223.2 |  | 226.9 |  | 219.4 |
Capital expenditures | 103.5 |  | 80.1 |  | 62.9 |
Total Assets | 1,636.8 |  | 1,788.7 |  | 1,900.3 |
Metal Forming [Member] | Cost of Sales [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Depreciation and tooling amortization | 156.7 |  | 159.5 |  | 156.1 |
Metal Forming [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Depreciation and tooling amortization | 3.5 |  | 3.6 |  | 3.7 |
Corporate and Eliminations [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Sales | 0.0 |  | 0.0 |  | 0.0 |
Less: Intersegment sales | 0.0 |  | 0.0 |  | 0.0 |
Net external sales | 0.0 |  | 0.0 |  | 0.0 |
Segment Reporting, Cost of Goods Sold, Amount | 0.0 | [1] | 0.0 | [2] | 0.0 | [3]
Segment Reporting, Selling, General and Administrative Expenses, Amount | 0.0 | [4] | 0.0 | [5] | 0.0 | [6]
Segment Reporting, Other Segment Item, Amount | 0.0 | [7] | 0.0 | [8] | 0.0 | [9]
Segment adjusted EBITDA | 0.0 |  | 0.0 |  | 0.0 |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 |
Capital expenditures | 4.2 |  | 8.6 |  | 5.2 |
Total Assets | $ 1,002.5 |  | $ 1,013.3 |  | $ 1,027.1 |
[1] | (a) Cost of goods sold excludes depreciation and amortization, which was $210.2 million for Driveline and $156.7 million for Metal Forming for the year ended December 31, 2024.
[2] | (a) Cost of goods sold excludes depreciation and amortization, which was $222.7 million for Driveline and $159.5 million for Metal Forming for the year ended December 31, 2023.
[3] | (a) Cost of goods sold excludes depreciation and amortization, which was $232.0 million for Driveline and $156.1 million for Metal Forming for the year ended December 31, 2022.
[4] | (b) Selling, general and administrative expenses excludes depreciation, which was $16.4 million for Driveline and $3.5 million for Metal Forming for the year ended December 31, 2024.
[5] | (b) Selling, general and administrative expenses excludes depreciation, which was $16.0 million for Driveline and $3.6 million for Metal Forming for the year ended December 31, 2023.
[6] | (b) Selling, general and administrative expenses excludes depreciation, which was $14.8 million for Driveline and $3.7 million for Metal Forming for the year ended December 31, 2022.
[7] | (c) Other segment expense (income), net primarily consists of the net impact of interest income and foreign exchange gains and losses.
[8] | (c) Other segment expense (income), net primarily consists of the net impact of interest income and foreign exchange gains and losses.
[9] | (c) Other segment expense (income), net primarily consists of the net impact of interest income and foreign exchange gains and losses, as well as amounts related to the Malvern Fire and Tekfor acquisition.

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