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Stock Compensation Plans - Summary of Stock-Based Compensation Cost and Related Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Share-Based Payment Arrangement [Abstract]      
Stock based compensation cost $ 1,188 $ 785 $ 780
Related tax benefits $ 264 $ 173 $ 173