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Revenues - Summary of Net Revenues Disaggregated by Category (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 110,423	$ 93,166	$ 300,437	$ 262,892
Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	44,917	43,764	114,508	123,842
Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	65,506	49,402	185,929	139,050
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member]
Disaggregation of Revenue [Line Items]
Revenue	52,670	55,259	174,214	145,660
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	20,728	25,854	58,630	66,902
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	31,942	29,405	115,584	78,758
Stocking distributors, net of sales allowances [Member]
Disaggregation of Revenue [Line Items]
Revenue	35,168	24,091	77,977	80,657
Stocking distributors, net of sales allowances [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	23,850	17,724	54,818	56,289
Stocking distributors, net of sales allowances [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	11,318	6,367	23,159	24,368
Non-recurring engineering [Member]
Disaggregation of Revenue [Line Items]
Revenue	560	86	4,386	4,674
Non-recurring engineering [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	339	186	1,060	651
Non-recurring engineering [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	221	(100)	3,326	4,023
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	21,725	13,370	42,840	30,821
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	21,725	13,370	42,840	30,821
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	300	360	1,020	1,080
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	$ 300	$ 360	$ 1,020	$ 1,080

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