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v3.25.1

Goodwill and Other Intangible Assets (Schedule of Intangible Assets and Goodwill) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Finite-lived Intangible Assets [Roll Forward] |  |
Gross carrying amount | $ 85,688 | $ 85,000
Accumulated amortization and other | (54,076) | (52,585)
Net carrying amount | 31,612 | 32,415
Goodwill [Line Items] |  |
Goodwill | 178,837 | 176,261
Total Indefinite-lived intangible assets: | 184,788 | 181,973
MC Goodwill |  |
Goodwill [Line Items] |  |
Goodwill | 65,873 | 63,988
AEC Goodwill |  |
Goodwill [Line Items] |  |
Goodwill | 112,964 | 112,273
Heimbach Trade name |  |
Indefinite-Lived Intangible Assets [Line Items] |  |
Indefinite-lived intangible assets (excluding goodwill) | 5,951 | 5,712
AEC Trademarks and trade names |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Gross carrying amount | 208 | 208
Accumulated amortization and other | (200) | (197)
Net carrying amount | $ 8 | $ 11
AEC Trademarks and trade names | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 6 years | 6 years
AEC Trademarks and trade names | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 15 years | 15 years
AEC Technology |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Gross carrying amount | $ 6,048 | $ 5,820
Accumulated amortization and other | (3,398) | (3,140)
Net carrying amount | $ 2,650 | $ 2,680
AEC Technology | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 10 years | 10 years
AEC Technology | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 15 years | 15 years
AEC Intellectual property |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 15 years | 15 years
Finite-lived Intangible Assets [Roll Forward] |  |
Gross carrying amount | $ 1,250 | $ 1,250
Accumulated amortization and other | (443) | (422)
Net carrying amount | 807 | 828
AEC Customer relationships |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Gross carrying amount | 69,298 | 69,175
Accumulated amortization and other | (48,203) | (47,283)
Net carrying amount | $ 21,095 | $ 21,892
AEC Customer relationships | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 8 years | 8 years
AEC Customer relationships | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 15 years | 15 years
Heimbach Developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization life in years | 9 years | 9 years
Finite-lived Intangible Assets [Roll Forward] |  |
Gross carrying amount | $ 8,884 | $ 8,547
Accumulated amortization and other | (1,832) | (1,543)
Net carrying amount | $ 7,052 | $ 7,004

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