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Subsequent Events
6 Months Ended
Jun. 30, 2011
Subsequent Events [Abstract]  
Subsequent Events
 
16.   Subsequent Events
 
On July 15, 2011, aggregate dividends, distributions, and dividend equivalents of $21.4 million were paid to common stockholders and common unitholders of record on June 30, 2011 and RSU holders of record on July 15, 2011.
 
In July 2011, the Operating Partnership issued unsecured senior notes in a public offering with an aggregate principal balance of $325.0 million that are scheduled to mature in July 2018. The unsecured senior notes require semi-annual interest payments each January and July based on a stated annual interest rate of 4.80%. The Company used the net proceeds from this offering for general corporate purposes, including the repayment of borrowings under the Credit Facility.
 
In July 2011, the Company commenced a “continuous equity” offering program under which it may sell up to an aggregate of $200 million of its common stock from time to time in one or more “at the market” offerings. The Company may sell common stock under this program in amounts and at times to be determined by the Company and the Company has no obligation to sell common stock under this program.