Revenues - Summary of Net Revenues Disaggregated by Category (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 359,058	$ 405,059	$ 399,079
Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	161,729	181,166	155,758
Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	197,329	223,893	243,321
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member]
Disaggregation of Revenue [Line Items]
Revenue	201,503	276,997	319,590
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	88,144	113,448	102,905
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	113,359	163,549	216,685
Stocking distributors, net of sales allowances [Member]
Disaggregation of Revenue [Line Items]
Revenue	103,774	96,437	65,650
Stocking distributors, net of sales allowances [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	72,713	66,544	51,819
Stocking distributors, net of sales allowances [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	31,061	29,893	13,831
Non-recurring engineering [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,746	14,595	10,967
Non-recurring engineering [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	872	1,174	1,034
Non-recurring engineering [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,874	13,421	9,933
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	46,595	15,872	2,801
Royalties [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0
Royalties [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	46,595	15,872	2,801
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,440	1,158	71
Other [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0
Other [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 1,440	$ 1,158	$ 71