Goodwill and Other Intangible Assets (Schedule of Intangible Assets and Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2025	Sep. 30, 2025	Dec. 31, 2024
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount		$ 86,826	$ 85,000
Accumulated amortization and other		(57,182)	(52,585)
Net carrying amount		29,644	32,415
Goodwill [Line Items]
Goodwill		184,291	176,261
Total Indefinite-lived intangible assets:		190,745	181,973
MC Goodwill
Goodwill [Line Items]
Goodwill		69,871	63,988
AEC Goodwill
Goodwill [Line Items]
Goodwill		114,420	112,273
Heimbach Trade name
Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)		6,454	5,712
AEC Trademarks and trade names
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount		208	208
Accumulated amortization and other		(205)	(197)
Net carrying amount		$ 3	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		$ 6,528	5,820
Accumulated amortization and other		(3,962)	(3,140)
Net carrying amount		$ 2,566	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		(485)	(422)
Net carrying amount		765	828
AEC Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount		69,559	69,175
Accumulated amortization and other		(50,069)	(47,283)
Net carrying amount		$ 19,490	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		$ 9,281	8,547
Accumulated amortization and other		(2,461)	(1,543)
Net carrying amount		$ 6,820	$ 7,004