Annual report pursuant to Section 13 and 15(d)

Stock Compensation Plans - Summary of Issuance of Shares, Stock-Based Compensation Cost and Related Tax Benefits (Detail)

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Stock Compensation Plans - Summary of Issuance of Shares, Stock-Based Compensation Cost and Related Tax Benefits (Detail) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock based compensation cost $ 1,188 $ 785 $ 780
Related tax benefits $ 264 $ 173 $ 173
Employee Stock Purchase Plan [Member]      
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Issued from treasury shares 0 29 18
Issued from common stock 50 17 0
Stock based compensation cost $ 91 $ 21 $ 29
Related tax benefits $ 20 $ 5 $ 7