v3.26.1
Derivative Financial Instruments - Additional Information (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred $ (4,059)  
Zero Cost Collar and Forward Contracts [Member] | Nomura Financial Investment (Korea) Co., Ltd. [Member]    
Derivative [Line Items]    
Threshold amount of cash collateral 500  
Threshold amount of additional cash collateral 4,540 $ 1,200
Termination provisions for cash and cash equivalents $ 30,000