Inventories - Narrative (Details) - USD ($) $ in Millions |
Nov. 30, 2021 |
Aug. 31, 2021 |
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| LIFO inventory, difference amount had FIFO inventory valuation method been used | $ 402.2 | $ 359.2 |
| Percentage of LIFO inventory | 11.00% | 13.00% |
| Inventory [Line Items] | ||
| Percentage of LIFO inventory | 11.00% | 13.00% |