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Equity (Narrative) (Details) (USD $) | 3 Months Ended |  | 0 Months Ended
--- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2014 Parent Company [Member] | Apr. 17, 2014 Subsequent Event [Member]
Equity [Abstract] |  |  |  |
Stock Options Excluded From Diluted Common Shares Outstanding Calculation | 9,000,000 | 8,900,000 |  |
Shares, Issued |  |  | 773,203 |
Common stock dividend (in dollars per share) | $ 0.83 | $ 0.83 |  | $ 0.83

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- Definition The number of stock options not included in the calculation of diluted common shares outstanding due to their antidilutive effect. + References No definition available. + Details
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- 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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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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