Revenues - Summary of Net Revenues Disaggregated by Category (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 85,854	$ 106,747	$ 169,726	$ 204,563
Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	39,486	39,234	80,078	85,759
Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	46,368	67,513	89,648	118,804
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member]
Disaggregation of Revenue [Line Items]
Revenue	47,951	79,991	90,401	152,490
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	20,238	24,435	41,048	54,921
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	27,713	55,556	49,353	97,569
Stocking distributors, net of sales allowances [Member]
Disaggregation of Revenue [Line Items]
Revenue	27,527	20,683	56,566	41,472
Stocking distributors, net of sales allowances [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	19,158	14,338	38,565	30,075
Stocking distributors, net of sales allowances [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	8,369	6,345	18,001	11,397
Non-recurring engineering [Member]
Disaggregation of Revenue [Line Items]
Revenue	745	3,257	4,588	5,687
Non-recurring engineering [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	90	461	465	763
Non-recurring engineering [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	655	2,796	4,123	4,924
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,271	2,456	17,451	4,476
Royalties [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Royalties [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,271	2,456	17,451	4,476
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	360	360	720	438
Other [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Other [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 360	$ 360	$ 720	$ 438