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Marketable Securities | 6 Months Ended
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Jun. 30, 2014
Marketable Securities [Abstract] |
Marketable Securities [Text Block] | 6. Marketable Securities As of June 30, 2014 and December 31, 2013, we own ed 535,265 common shares of The Macerich Company (“Macerich”) (NYSE: MAC), which we re received in connection with the sale of the Kings Plaza Regional Shopping Center to Macerich in November 2012. These shares have an economic cost of $56.05 per share, or $30,000,000 in the aggregate. A s of June 30, 2014 and December 31, 2013, the fair value s of these shares w ere $35,729,000 and $31,522,000, respectively, based on Macerich's closing share price of $66.75 per share and $58.89 per share, respectively. These shares are included in “marketable securities” on our consolidated balance sheets and are classified as available-for-sale. Available-for-sale securities are presented at fair value and u nrealized gains and losses resulting from the mark-to-market of these securities are included in “other comprehensive income.”

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