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Consolidated Statement of Changes in Equity (USD $) In Thousands, except Share data | Total | Common Stock | Additional Capital | Retained Earnings | Accumulated Other Comprehensive Income | Treasury Stock | Alexander's Equity | Non-controlling Interest
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, at Dec. 31, 2009 | $ 314,626 | $ 5,173 | $ 31,501 | $ 275,921 | $ 0 | $ (375) | $ 312,220 | $ 2,406
Shares Issued, Beginning Balance (in shares) at Dec. 31, 2009 | 5,173,000 |  |  |  |  |  |  |
Net income | 67,445 |  |  | 66,429 |  |  | 66,429 | 1,016
Dividends paid | (38,295) |  |  | (38,295) |  |  | (38,295) |
Change in unrealized net gain on securities available-for-sale | 0 |  |  |  |  |  |  |
Balance, at Dec. 31, 2010 | 343,776 | 5,173 | 31,501 | 304,055 | 0 | (375) | 340,354 | 3,422
Shares Issued, Ending Balance (in shares) at Dec. 31, 2010 | 5,173,000 |  |  |  |  |  |  |
Net income | 81,046 |  |  | 79,423 |  |  | 79,423 | 1,623
Dividends paid | (61,277) |  |  | (61,277) |  |  | (61,277) |
Change in unrealized net gain on securities available-for-sale | 0 |  |  |  |  |  |  |
Distributions | (600) |  |  |  |  |  |  | (600)
Deferred stock unit grant | 300 |  | 300 |  |  |  | 300 |
Balance, at Dec. 31, 2011 | 363,245 | 5,173 | 31,801 | 322,201 | 0 | (375) | 358,800 | 4,445
Shares Issued, Ending Balance (in shares) at Dec. 31, 2011 | 5,173,450 |  |  |  |  |  |  |
Net income | 674,993 |  |  | 674,387 |  |  | 674,387 | 606
Dividends paid | (699,791) |  |  | (699,791) |  |  | (699,791) |
Acquisition of the noncontrolling interest | (7,800) |  | (2,749) |  |  |  | (2,749) | (5,051)
Change in unrealized net gain on securities available-for-sale | 1,206 |  |  |  | 1,206 |  | 1,206 |
Deferred stock unit grant | 300 |  | 300 |  |  |  | 300 |
Balance, at Dec. 31, 2012 | $ 332,153 | $ 5,173 | $ 29,352 | $ 296,797 | $ 1,206 | $ (375) | $ 332,153 | $ 0
Shares Issued, Ending Balance (in shares) at Dec. 31, 2012 | 5,173,450 |  |  |  |  |  |  |

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- Definition Amount of equity-based compensation, related to restricted stock units or restricted stock awards, recognized as expense or an asset, if compensation is capitalized. + References No definition available. + Details
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- Definition This item represents the pretax change in net unrealized holding gain (loss) on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 21 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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