Revenue from Contracts with Customers - Summary of Changes in Contract Assets and Contract Liabilities (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2026 USD ($)
Contract liabilities
Beginning Balance	$ 1,259
Balance, current	1,259
Additions	44,076
Deductions	(10,063)
Ending balance, Current	25,534
Ending balance, Non-current	9,738
Ending Balance	35,272
Thermal Barrier [Member]
Contract liabilities
Deferred revenue current, Additions	24,343
Deferred revenue current, Deductions	(4,869)
Deferred revenue non-current, Additions	14,607
Deferred revenue non-current, Deductions	(4,869)
Ending balance, Current	19,474
Ending balance, Non-current	9,738
Energy Industrial [Member]
Contract liabilities
Balance, current	1,259
Deferred revenue current, Additions	5,126
Deferred revenue current, Deductions	(325)
Ending balance, Current	$ 6,060