Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Intangible Assets and Goodwill

The changes in intangible assets and goodwill from December 31, 2023 to December 31, 2025, were as follows:

(in thousands, except for years)	Amortization life in years	Balance at December 31, 2024		Reclassified to Held for Sale		Other Changes		Amortization		Currency Translation		Balance at December 31, 2025
Finite-lived intangible assets:
AEC Trademarks and trade names	6-15	$	11	$	—	$	—	$	(11)	$	—	$	—
AEC Technology	10-15	2,680		—		—		(616)		352		2,416
AEC Intellectual property	15	828		—		—		(83)		—		745
AEC Customer relationships	8-15	21,892		(13,384)		—		(3,504)		225		5,229
Heimbach Developed technology	9	7,004		—		(315)		(988)		881		6,582
Total Finite-Lived intangible assets, net		$	32,415	$	(13,384)	$	(315)	$	(5,202)	$	1,458	$	14,972
Indefinite-lived intangible assets:
Heimbach Trade name		$	5,712	$	—	$	—	$	—	$	744	$	6,456
MC Goodwill		63,988		—		—		—		5,923		69,911
AEC Goodwill		112,273		(21,829)		—		—		2,152		92,596
Total Indefinite-lived intangible assets		$	181,973	$	(21,829)	$	—	$	—	$	8,819	$	168,963

(in thousands, except for years)	Amortization life in years	Balance at December 31, 2023		Acquisition		Amortization		Currency Translation		Balance at December 31, 2024
Finite-lived intangible assets:
AEC Trademarks and trade names	6-15	$	22	$	—	$	(11)	$	—	$	11
AEC Technology	10-15	3,426		—		(569)		(177)		2,680
AEC Intellectual property	15	911		—		(83)		—		828
AEC Customer relationships	8-15	25,485		—		(3,480)		(113)		21,892
Heimbach Developed technology	9	8,732		(289)		(953)		(486)		7,004
Total Finite-Lived intangible assets, net		$	38,576	$	(289)	$	(5,096)	$	(776)	$	32,415
Indefinite-lived intangible assets:
Heimbach Trade name		$	6,070	$	—	$	—	$	(358)	$	5,712
MC Goodwill		66,873		—		—		(2,885)		63,988
AEC Goodwill		113,308		—		—		(1,035)		112,273
Total Indefinite-lived intangible assets		$	186,251	$	—	$	—	$	(4,278)	$	181,973

Schedule of Estimated Amortization Expense

Estimated amortization expense of intangibles for the years ending December 31, 2026 through 2030, is as follows:

Year	Annual amortization (in thousands)
2026	$	2,000
2027	1,900
2028	1,900
2029	1,800
2030	1,200