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Derivative Instruments and Hedging Activities: (Details) (Westside Pavilion, Interest rate cap agreement, USD $) In Thousands, unless otherwise specified | Mar. 31, 2012
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Westside Pavilion | Interest rate cap agreement |
Derivatives |
Notional Amount of outstanding derivatives | $ 175,000
Interest Rate of outstanding derivative (as a percent) | 5.50%

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- Definition Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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