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Leases - Schedule of Operating Lease Expenses (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Lessee Lease Description [Line Items]      
Total lease costs $ 4,213 $ 4,512 $ 4,809
Operating and Maintenance [Member]      
Lessee Lease Description [Line Items]      
Total lease costs 1,923 2,209 2,596
General and Administrative [Member]      
Lessee Lease Description [Line Items]      
Total lease costs $ 2,290 $ 2,303 $ 2,213