Accumulated Other Comprehensive Loss (Detail) $ in Millions |
12 Months Ended |
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Mar. 31, 2018
USD ($)
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| AOCI Attributable to Parent, Net of Tax [Roll Forward] | |
| Beginning balance | $ (212.2) |
| Other comprehensive income | (0.9) |
| Ending balance | (221.5) |
| Accumulated Other Comprehensive Loss [Member] | |
| AOCI Attributable to Parent, Net of Tax [Roll Forward] | |
| Beginning balance | (2.2) |
| Ending balance | (1.3) |
| Cash Flow Hedges [Member] | |
| AOCI Attributable to Parent, Net of Tax [Roll Forward] | |
| Beginning balance | 0.3 |
| Other comprehensive income | 0.0 |
| Ending balance | 0.3 |
| Foreign Currency Translation Adjustments [Member] | |
| AOCI Attributable to Parent, Net of Tax [Roll Forward] | |
| Beginning balance | (2.5) |
| Other comprehensive income | (0.9) |
| Ending balance | $ (1.6) |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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