Annual report pursuant to Section 13 and 15(d)

Stock Compensation Plans - Schedule of Restricted Stock Units ("RSUs"), Performance Stock Units ("PSUs"), and Restricted Stock Awards ("RSAs") Granted (Detail)

v3.24.1.1.u2
Stock Compensation Plans - Schedule of Restricted Stock Units ("RSUs"), Performance Stock Units ("PSUs"), and Restricted Stock Awards ("RSAs") Granted (Detail) - shares
shares in Thousands
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Time Vesting Restricted Stock Units (RSUs) [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded 78 126 76
Time Vesting Restricted Stock Units (RSUs) [Member] | Director [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded [1] 38 37 22
Time Vesting Restricted Stock Units (RSUs) [Member] | Officers and Key Employees [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded [1] 0 33 0
Performance Vesting Performance Stock Units (PSU) [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded 79 112 88
Performance Vesting Performance Stock Units (PSU) [Member] | Director [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded [1] 0 0 0
Performance Vesting Performance Stock Units (PSU) [Member] | Officers and Key Employees [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded [1] 79 112 88
Time Vest One-Third Per Year [Member] | Officers and Key Employees [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded [1] 40 56 54
Performance Vest One-Third Per Year [Member] | Officers and Key Employees [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock awarded [1] 0 0 0
[1] Subject to the terms of the applicable award.