Reportable Segments (Schedule of Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Net revenues	$ 261,434	$ 298,386	$ 861,607	$ 943,710
Cost of goods sold	311,372	208,002	717,552	632,257
Gross profit/(loss)	(49,938)	90,384	144,055	311,453
Selling, general and administrative expenses	51,905	52,097	164,219	162,447
Technical and research expenses	11,467	10,844	35,915	35,369
Restructuring expenses, net	3,197	2,272	9,895	6,584
Operating income/(loss)	(116,507)	25,171	(65,974)	107,053
MC
Segment Reporting Information [Line Items]
Net revenues	174,950	183,033	530,573	561,828
Restructuring expenses, net	2,000	2,200
AEC
Segment Reporting Information [Line Items]
Net revenues	86,484	115,353	331,034	381,882
Operating Segments | MC
Segment Reporting Information [Line Items]
Net revenues	174,950	183,033	530,573	561,828
Cost of goods sold	92,880	94,112	284,842	299,379
Gross profit/(loss)	82,070	88,921	245,731	262,449
Selling, general and administrative expenses	30,291	32,048	98,841	95,384
Technical and research expenses	6,716	7,042	21,332	22,066
Restructuring expenses, net	1,960	2,207	6,322	3,294
Operating income/(loss)	43,103	47,624	119,236	141,705
Operating Segments | AEC
Segment Reporting Information [Line Items]
Net revenues	86,484	115,353	331,034	381,882
Cost of goods sold	218,492	113,890	432,710	332,878
Gross profit/(loss)	(132,008)	1,463	(101,676)	49,004
Selling, general and administrative expenses	12,218	11,923	34,121	36,249
Technical and research expenses	3,673	3,802	11,472	13,303
Restructuring expenses, net	113	34	1,801	3,144
Operating income/(loss)	(148,012)	(14,296)	(149,070)	(3,692)
Corporate
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Gross profit/(loss)	0	0	0	0
Selling, general and administrative expenses	9,396	8,126	31,257	30,814
Technical and research expenses	1,078	0	3,111	0
Restructuring expenses, net	1,124	31	1,772	146
Operating income/(loss)	$ (11,598)	$ (8,157)	$ (36,140)	$ (30,960)