Investments in Joint Ventures - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Anhui [Member]
Schedule of Investments [Line Items]
Percentage of ownership	33.00%
Recorded cost	$ 835,000
Dividends declared	$ 0	$ 0
Gongchang [Member]
Schedule of Investments [Line Items]
Percentage of ownership	24.03%
Recorded cost	$ 1,340,000
Dividends declared	$ 62,000	$ 92,000
ATR [Member] | Akers AB [Member]
Schedule of Investments [Line Items]
Ownership interest percentage	59.88%
ATR [Member] | TISCO [Member]
Schedule of Investments [Line Items]
Ownership interest by minority holder	40.12%