Inventories - Components of Inventories (Detail) - USD ($) $ in Millions |
Mar. 31, 2019 |
Mar. 31, 2018 |
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Finished goods | $ 235.0 | $ 190.3 |
| Work-in-process | 7.3 | 8.1 |
| Raw materials and supplies | 88.8 | 65.3 |
| Provision for obsolete finished goods and raw materials | (13.7) | (8.0) |
| Total inventories | $ 317.4 | $ 255.7 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of valuation reserve for inventory. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|