Intangible Assets and Goodwill - Additional Information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Nov. 01, 2021	Mar. 27, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 30, 2020
Goodwill [Line Items]
Amortization of intangible assets			$ 5,973,000	$ 2,377,000	$ 1,400,000
Goodwill			318,620,000	144,916,000	79,011,000
Goodwill impairment charges		$ 9,100,000	0	9,053,000	11,560,000
Accumulated impairment loss			0
Discontinued Operations, Disposed of by Means Other than Sale | LAC Restructuring
Goodwill [Line Items]
Intangible assets						$ 26,200,000
HCS- Electronic Materials
Goodwill [Line Items]
Intangible assets	$ 107,800,000
Business combination, consideration transferred	395,900,000
Goodwill	178,181,000
Advanced Materials
Goodwill [Line Items]
Goodwill	154,300,000		204,520,000	50,527,000	50,190,000
Goodwill impairment charges			0	0
Performance Alloys and Composites
Goodwill [Line Items]
Goodwill	23,900,000		25,803,000	1,899,000	1,899,000
Goodwill impairment charges			0	0
LAC Restructuring
Goodwill [Line Items]
Goodwill impairment charges			0	9,100,000	$ 11,600,000
Accumulated impairment loss				20,600,000
Customer relationships | HCS- Electronic Materials
Goodwill [Line Items]
Intangible assets	$ 50,200,000
Acquired finite-lived intangible assets, weighted average useful life (in years)	13 years
Technology | HCS- Electronic Materials
Goodwill [Line Items]
Intangible assets	$ 35,300,000
Acquired finite-lived intangible assets, weighted average useful life (in years)	13 years
Trade name | HCS- Electronic Materials
Goodwill [Line Items]
Intangible assets	$ 22,300,000
Acquired finite-lived intangible assets, weighted average useful life (in years)	15 years
Deferred Financing Costs
Goodwill [Line Items]
Deferred finance cost			$ 3,600,000	$ 2,000,000