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Dividends Declared (Detail) - $ / shares	Jul. 31, 2015	Apr. 13, 2015	Jan. 19, 2015
January 2015
Dividends Payable [Line Items]
Record Date			Jan. 30, 2015
Payment Date			Feb. 17, 2015
Dividend Declared Per Share			$ 0.06
February 2015
Dividends Payable [Line Items]
Record Date			Feb. 27, 2015
Payment Date			Mar. 16, 2015
Dividend Declared Per Share			$ 0.06
March 2015
Dividends Payable [Line Items]
Record Date			Mar. 31, 2015
Payment Date			Apr. 15, 2015
Dividend Declared Per Share			$ 0.06
April 2015
Dividends Payable [Line Items]
Record Date		Apr. 30, 2015
Payment Date		May 15, 2015
Dividend Declared Per Share		$ 0.06
May 2015
Dividends Payable [Line Items]
Record Date		May 29, 2015
Payment Date		Jun. 15, 2015
Dividend Declared Per Share		$ 0.06
June 2015
Dividends Payable [Line Items]
Record Date		Jun. 30, 2015
Payment Date		Jul. 15, 2015
Dividend Declared Per Share		$ 0.06
July 2015 | Subsequent event
Dividends Payable [Line Items]
Record Date	Jul. 31, 2015
Payment Date	Aug. 17, 2015
Dividend Declared Per Share	$ 0.06
August 2015 | Subsequent event
Dividends Payable [Line Items]
Record Date	Aug. 31, 2015
Payment Date	Sep. 15, 2015
Dividend Declared Per Share	$ 0.06
September 2015 | Subsequent event
Dividends Payable [Line Items]
Record Date	Sep. 30, 2015
Payment Date	Oct. 15, 2015
Dividend Declared Per Share	$ 0.06

X

- Definition

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

+ References

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

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 50



-Paragraph 3



-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

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+ References

No definition available.

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