Revenues - Summary of Net Revenues Disaggregated by Category (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 96,046	$ 85,854	$ 190,014	$ 169,726
Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	35,480	39,486	69,591	80,078
Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	60,566	46,368	120,423	89,648
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member]
Disaggregation of Revenue [Line Items]
Revenue	59,774	47,951	121,544	90,401
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	19,620	20,238	37,902	41,048
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	40,154	27,713	83,642	49,353
Stocking distributors, net of sales allowances [Member]
Disaggregation of Revenue [Line Items]
Revenue	23,599	27,527	42,809	56,566
Stocking distributors, net of sales allowances [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	15,604	19,158	30,968	38,565
Stocking distributors, net of sales allowances [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,995	8,369	11,841	18,001
Non-recurring engineering [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,960	745	3,826	4,588
Non-recurring engineering [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	256	90	721	465
Non-recurring engineering [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,704	655	3,105	4,123
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	10,353	9,271	21,115	17,451
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	10,353	9,271	21,115	17,451
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	360	360	720	720
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	$ 720