Revenue from Contracts with Customers - Summary of Revenue Disaggregated by Geographical Region and Source of Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation Of Revenue [Line Items]
Total revenue	$ 49,849	$ 78,024	$ 87,733	$ 156,747
Energy Industrial [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	20,372	22,793	41,960	52,615
Thermal Barrier [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	29,477	55,231	45,773	104,132
Asia [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	3,612	8,553	9,078	15,718
Canada [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	265	1,194	265	2,005
Europe [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	6,776	4,047	15,803	8,802
Latin America [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	567	15,719	1,076	43,539
U.S. [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	38,629	48,511	61,511	86,683
U.S. [Member] \| Energy Industrial [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	14,943	9,294	26,585	26,610
U.S. [Member] \| Thermal Barrier [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	23,686	39,217	34,926	60,073
International [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	11,220	29,513	26,222	70,064
International [Member] \| Energy Industrial [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,429	13,499	15,375	26,005
International [Member] \| Thermal Barrier [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 5,791	$ 16,014	$ 10,847	$ 44,059