| 
           Investments In Unconsolidated Joint Ventures (South Pier At Harborside - Hotel) (Details) (Harborside South Pier [Member], USD $) 
        In Millions, unless otherwise specified  | 
        9 Months Ended | 
|---|---|
| 
           Sep. 30, 2012
 
          room 
         | 
      |
| 
           Harborside South Pier [Member] 
         | 
        |
| Schedule of Equity Method Investments [Line Items] | |
| Number of hotel rooms | 350 | 
| Percentage of interest in venture | 50.00% | 
| Mortgage loans, carrying amount | $ 64.3 | 
| Interest rate | 6.15% | 
| Mortgage loan, maturity date | November 2016 | 
| Book value of Company's long-term debt | 5.1 | 
| Bears interest at fixed rate range, minimum | 6.09% | 
| Bears interest at fixed rate range, maximum | 6.62% | 
| Loan maturity date | Aug. 01, 2020 | 
| Letter of credit | $ 5.1 | 
| X | ||||||||||
| 
             
- Definition 
          Fair value of the amount outstanding under the credit facility. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Loan Carrying Amount No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Loan Maturity Date No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Mortgage Loan Maturity Period No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          When presenting a range of interest rates, the highest effective rate for funds borrowed under the debt agreement as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          When presenting a range of interest rates, the lowest effective rate for funds borrowed under the debt agreement as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The carrying amount of the outstanding balance due under the mortgage loan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The number of units in a real estate property owned as of the balance sheet date. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  |