XML 51 R27.htm IDEA: XBRL DOCUMENT

Income Taxes (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jan. 31, 2013
Income Taxes (Textual) [Abstract]
Effective tax rate	32.10%
Expected tax rate	32.60%
Change in gross unrecognized tax benefits expected in next twelve months	$ 0

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details