Revenues - Summary of Net Revenues Disaggregated by Category (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 359,364	$ 296,576	$ 262,977
Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	189,144	190,256	187,896
Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	170,220	106,320	75,081
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member]
Disaggregation of Revenue [Line Items]
Revenue	283,279	251,409	222,702
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	139,099	160,004	159,135
Direct Customers, Contract Manufacturers and Non-stocking Distributors [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	144,180	91,405	63,567
Stocking distributors, net of sales allowances [Member]
Disaggregation of Revenue [Line Items]
Revenue	63,482	37,921	37,599
Stocking distributors, net of sales allowances [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	49,359	29,411	27,797
Stocking distributors, net of sales allowances [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	14,123	8,510	9,802
Non-recurring engineering [Member]
Disaggregation of Revenue [Line Items]
Revenue	10,713	7,022	2,457
Non-recurring engineering [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	686	841	843
Non-recurring engineering [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	10,027	6,181	1,614
Royalties [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,819	152	145
Royalties [Member] | Brick Products [Member]
Disaggregation of Revenue [Line Items]
Revenue			121
Royalties [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,819	152	24
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	71	72	74
Other [Member] | Advanced Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 71	$ 72	$ 74