Fair Value Measurements (Tables)

9 Months Ended

Jan. 31, 2013

Fair Value Disclosures [Abstract]

Summary of assets and liabilities measured at fair value on a recurring basis

The following table summarizes the assets and liabilities measured at fair value on a recurring basis as of January 31, 2013:

(Dollars in millions)	Level 1		Level 2		Level 3		Total
Assets:
Currency derivatives	$	—	$	1.9	$	—	$	1.9
Interest rate swaps	—		1.8		—		1.8
Liabilities:
Currency derivatives	—		13.3		—		13.3
Short-term borrowings	—		10.6		—		10.6
Current portion of long-term debt	—		261.6		—		261.6
Long-term debt	—		994.0		—		994.0