Quarterly report pursuant to Section 13 or 15(d)

Unsecured Revolving Credit Facility (Change In The Operating Partnership's Unsecured Debt Ratings) (Details)

 v2.3.0.11
Unsecured Revolving Credit Facility (Change In The Operating Partnership's Unsecured Debt Ratings) (Details)
 6 Months Ended
Jun. 30, 2011
Unsecured Debt Ratings BBB/Baa2
Facility Fee Basis Points 15
No Ratings Or Less Than BBB-/Baa3/BBB- [Member]
  
Unsecured Debt Ratings No ratings or less than BBB-/Baa3/BBB- [1]
Interest Rate - Applicable Basis Points Above LIBOR 100.0 [1]
Facility Fee Basis Points 25.0 [1]
BBB-/Baa3/BBB- [Member]
  
Unsecured Debt Ratings BBB-/Baa3/BBB- [1]
Interest Rate - Applicable Basis Points Above LIBOR 75.0 [1]
Facility Fee Basis Points 20.0 [1]
BBB/Baa2/BBB (Current) [Member]
  
Unsecured Debt Ratings BBB/Baa2/BBB (current) [1]
Interest Rate - Applicable Basis Points Above LIBOR 55.0 [1]
Facility Fee Basis Points 15.0 [1]
BBB+/Baa1/BBB+ [Member]
  
Unsecured Debt Ratings BBB+/Baa1/BBB+ [1]
Interest Rate - Applicable Basis Points Above LIBOR 42.5 [1]
Facility Fee Basis Points 15.0 [1]
A-/A3/A- Or Higher [Member]
  
Unsecured Debt Ratings A-/A3/A- or higher [1]
Interest Rate - Applicable Basis Points Above LIBOR 37.5 [1]
Facility Fee Basis Points 12.5 [1]
[1] (a) If the Operating Partnership has debt ratings from two rating agencies, one of which is Standard & Poor's Rating Services ("S&P") or Moody's Investors Service ("Moody's"), the rates per the above table shall be based on the lower of such ratings. If the Operating Partnership has debt ratings from three rating agencies, one of which is S&P or Moody's, the rates per the above table shall be based on the lower of the two highest ratings. If the Operating Partnership has debt ratings from only one agency, it will be considered to have no rating or less than BBB-/Baa3/BBB- per the above table.