Goodwill and Other Intangible Assets (Schedule of Intangible Assets and Goodwill) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount	$ 86,832	$ 85,000
Accumulated amortization and other	(55,889)	(52,585)
Net carrying amount	30,943	32,415
Goodwill [Line Items]
Goodwill	184,333	176,261
Total Indefinite-lived intangible assets:	190,791	181,973
MC Goodwill
Goodwill [Line Items]
Goodwill	69,901	63,988
AEC Goodwill
Goodwill [Line Items]
Goodwill	114,432	112,273
Heimbach Trade name
Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	6,458	5,712
AEC Trademarks and trade names
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount	208	208
Accumulated amortization and other	(203)	(197)
Net carrying amount	$ 5	$ 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	$ 6,531	$ 5,820
Accumulated amortization and other	(3,810)	(3,140)
Net carrying amount	$ 2,721	$ 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	(464)	(422)
Net carrying amount	786	828
AEC Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount	69,561	69,175
Accumulated amortization and other	(49,195)	(47,283)
Net carrying amount	$ 20,366	$ 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	$ 9,282	$ 8,547
Accumulated amortization and other	(2,217)	(1,543)
Net carrying amount	$ 7,065	$ 7,004