Fair Value of Financial Instruments (Parenthetical) (Detail) |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Nov. 13, 2025 |
Jul. 01, 2021 |
|
| 2.500% Senior Unsecured Notes Due 2031 [Member] | |||
| Fair Value Of Financial Instruments [Line Items] | |||
| Debt instrument, interest rate | 2.50% | 2.50% | |
| Debt instrument, maturity year | 2031 | ||
| 5.000% Senior Unsecured Notes Due 2036 [Member] | |||
| Fair Value Of Financial Instruments [Line Items] | |||
| Debt instrument, interest rate | 5.00% | 5.00% | |
| Debt instrument, maturity year | 2036 |