Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Detail)

v3.4.0.3
Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Detail)
$ in Millions
12 Months Ended
Mar. 31, 2016
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance $ (0.4)
Other comprehensive loss before reclassifications 0.9
Pension and post-retirement benefit adjustments 0.3
Net current-period other comprehensive income 1.2
Ending balance 0.8
Pension and Post-Retirement Benefit [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance (0.3)
Pension and post-retirement benefit adjustments 0.3
Net current-period other comprehensive income 0.3
Cash Flow Hedges [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance 0.3
Ending balance 0.3
Foreign Currency Translation [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance (0.4)
Other comprehensive loss before reclassifications 0.9
Net current-period other comprehensive income 0.9
Ending balance $ 0.5