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Dividends Declared (Detail) (USD $)	1 Months Ended
	Jan. 15, 2014 January 2014	Jan. 15, 2014 February 2014	Jan. 15, 2014 March 2014	Apr. 17, 2014 April 2014 Subsequent event	Apr. 17, 2014 May 2014 Subsequent event	Apr. 17, 2014 June 2014 Subsequent event
Dividends Payable [Line Items]
Record Date	Jan. 31, 2014	Feb. 28, 2014	Mar. 31, 2014	Apr. 30, 2014	May 30, 2014	Jun. 30, 2014
Payment Date	Feb. 14, 2014	Mar. 17, 2014	Apr. 15, 2014	May 15, 2014	Jun. 16, 2014	Jul. 15, 2014
Dividend Declared Per Share	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

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Period Type:	duration

X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
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X

- Details

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