Revenue from Contracts with Customers - Summary of Changes in Contract Assets and Contract Liabilities (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Contract assets
Beginning Balance	$ 1,831
Additions	1,042
Deductions	(1,880)
Ending Balance	993
Contract liabilities
Beginning Balance	11,049
Additions	1,736
Deductions	(6,584)
Ending Balance	6,201
Subsea Projects [Member]
Contract assets
Beginning Balance	1,448
Additions	965
Deductions	(1,671)
Ending Balance	742
Contract liabilities
Additions	954
Deductions	(548)
Ending Balance	406
Research Services [Member]
Contract assets
Beginning Balance	148
Additions	77
Deductions	(209)
Ending Balance	16
Thermal Barrier [Member]
Contract assets
Beginning Balance	235
Ending Balance	235
Energy Industrial [Member]
Contract liabilities
Beginning Balance	1,321
Additions	782
Deductions	(1,308)
Ending Balance	795
Prepayment Liability [Member]
Contract liabilities
Beginning Balance	9,728
Deductions	(4,728)
Ending Balance	$ 5,000