XML 35 R31.htm IDEA: XBRL DOCUMENT v2.4.0.8

Dividends Declared Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Dividends Payable [Line Items]
Dividend Amount	$ 0.345	$ 0.345	$ 1.035	$ 1.035
Group One
Dividends Payable [Line Items]
Declaration Date			Jun. 05, 2013
Date Paid (Payable)			Aug. 15, 2013
Shareholder of Record Date			Aug. 01, 2013
Dividend Amount			$ 0.345
Group Two
Dividends Payable [Line Items]
Declaration Date			Mar. 28, 2013
Date Paid (Payable)			May 15, 2013
Shareholder of Record Date			May 01, 2013
Dividend Amount			$ 0.345
Group Three
Dividends Payable [Line Items]
Declaration Date			Jan. 17, 2013
Date Paid (Payable)			Feb. 15, 2013
Shareholder of Record Date			Feb. 01, 2013
Dividend Amount			$ 0.345
Group Four
Dividends Payable [Line Items]
Declaration Date			Sep. 19, 2012
Date Paid (Payable)			Nov. 15, 2012
Shareholder of Record Date			Nov. 01, 2012
Dividend Amount			$ 0.345
Group Five
Dividends Payable [Line Items]
Declaration Date			Jun. 06, 2012
Date Paid (Payable)			Aug. 15, 2012
Shareholder of Record Date			Aug. 01, 2012
Dividend Amount			$ 0.345
Group Six
Dividends Payable [Line Items]
Declaration Date			Mar. 22, 2012
Date Paid (Payable)			May 15, 2012
Shareholder of Record Date			May 01, 2012
Dividend Amount			$ 0.345
Group Seven
Dividends Payable [Line Items]
Declaration Date			Jan. 17, 2012
Date Paid (Payable)			Feb. 15, 2012
Shareholder of Record Date			Feb. 01, 2012
Dividend Amount			$ 0.345

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

Name:	us-gaap_CommonStockDividendsPerShareDeclared
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

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the dividend to be paid was declared, 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

Name:	us-gaap_DividendsPayableDateDeclaredDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
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

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DividendsPayableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration