Fair Value Measurements - Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Millions |
Jan. 28, 2023 |
Aug. 31, 2022 |
Jan. 29, 2022 |
|---|---|---|---|
| Assets | |||
| Adjusted Cost | $ 254.0 | $ 4.4 | |
| Unrealized Gains | 0.0 | 0.0 | |
| Unrealized Losses | (0.9) | 0.0 | |
| Fair Value | 253.1 | 4.4 | |
| Liabilities | |||
| Total liabilities | 6.3 | 1.0 | |
| Level 1: | U.S. government securities | |||
| Assets | |||
| Adjusted Cost | 253.5 | 0.0 | |
| Unrealized Gains | 0.0 | 0.0 | |
| Unrealized Losses | (0.9) | 0.0 | |
| Fair Value | 252.6 | $ 250.0 | 0.0 |
| Level 2: | |||
| Liabilities | |||
| Foreign currency contracts | 5.9 | 0.4 | |
| Nonqualified deferred compensation | 0.4 | 0.6 | |
| Level 2: | Foreign currency contracts | |||
| Assets | |||
| Adjusted Cost | 0.0 | 3.8 | |
| Unrealized Gains | 0.0 | 0.0 | |
| Unrealized Losses | 0.0 | 0.0 | |
| Fair Value | 0.0 | 3.8 | |
| Level 2: | Company-owned life insurance | |||
| Assets | |||
| Adjusted Cost | 0.5 | 0.6 | |
| Unrealized Gains | 0.0 | 0.0 | |
| Unrealized Losses | 0.0 | 0.0 | |
| Fair Value | $ 0.5 | $ 0.6 |