XML 74 R60.htm IDEA: XBRL DOCUMENT v2.4.0.6

Dividends (Details) (USD $)	0 Months Ended			12 Months Ended			0 Months Ended
	Sep. 20, 2011	Jun. 27, 2011	Apr. 07, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Jan. 10, 2012 Dividend Paid [Member]
Dividends Payable [Line Items]
Dividends Payable, Date to be Paid, Day, Month and Year	Sep. 20, 2011	Jun. 27, 2011	Apr. 07, 2011				Jan. 10, 2012
Dividends Payable, Date of Record, Day, Month and Year	Sep. 09, 2011	Jun. 17, 2011	Mar. 25, 2011				Dec. 30, 2011
Dividends per common share (in dollars per share)	$ 0.08	$ 0.08	$ 0.08	$ 0.32	$ 0.33	$ 0.33	$ 0.08

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=6959260&loc=d3e187085-122770

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

The day, month, and year (YYYY-MM-DD) that the dividend declared as of or prior to the financial reporting date will be paid in the subsequent period.

+ 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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X

- Definition

The date as of when a holder must own the stock to be entitled to the dividend. The ex-dividend date is generally 3 days before the record date.

+ References

No definition available.

+ Details

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

X

- Details

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Data Type:	xbrli:stringItemType
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