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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2024 | Oct. 03, 2024 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Aug. 31, 2023
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Goodwill impairment charges |  |  | $ 0 |  |  |  |
Reporting unit, reduction in percentage of fair value in excess of carrying amount |  | 20.00% |  |  |  |  |
Reporting unit, percentage of fair value in excess of carrying amount |  | 25.00% |  |  |  |  |
Impairment of intangible assets, finite-lived | $ 300,000 |  |  |  |  |  |
Amortized intangible assets, gross | 86,100,000 |  |  | $ 86,100,000 |  |  |
Amortized intangible assets, accumulated amortization | $ 53,700,000 |  |  | 53,700,000 |  |  |
Amortization of intangible assets |  |  |  | $ 5,096,000 | $ 4,452,000 |  |
Impairment Of Intangible Asset Finite Lived Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag |  |  |  | other changes |  |  |
Heimbach |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Amortizable intangible assets |  |  |  |  |  |  | $ 14,900,000
Amortization of intangible assets |  |  |  | $ 1,000,000 | 300,000 |  |
Heimbach | AEC Technology |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Acquired finite-lived intangibles |  |  |  |  |  |  | $ 8,900,000
Finite-lived intangible assets, useful life |  |  |  |  |  |  | 9 years
Heimbach | AEC Tradema |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Acquired indefinite-lived intangible assets |  |  |  |  |  |  | $ 6,000,000
Cost of Sales |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Amortization of intangible assets |  |  |  | 1,100,000 | 400,000 | $ 800,000 |
Selling, General and Administrative Expenses |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Amortization of intangible assets |  |  |  | $ 4,200,000 | $ 4,100,000 | $ 4,000,000.0 |

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