Aggregate dividends paid during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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No definition available.

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Subsequent Event (Details) - $ / shares		3 Months Ended		6 Months Ended
Subsequent Event (Details) - $ / shares	Nov. 19, 2015	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Cash Paid		$ 0.315	$ 0.290	$ 0.630	$ 0.580
Common Stock, Dividends, Per Share, Declared		$ 0.000	$ 0.000	$ 0.630	$ 0.580
Subsequent Event [Member]
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.340