Quarterly report pursuant to Section 13 or 15(d)

Unsecured Term Loan (Schedule Of Interest Rate On Outstanding Borrowings Payable) (Details)

v3.4.0.3
Unsecured Term Loan (Schedule Of Interest Rate On Outstanding Borrowings Payable) (Details)
 3 Months Ended
Mar. 31, 2016
Unsecured Term Loan [Member]  
Line of Credit Facility [Line Items]  
Interest Rate - Applicable Basis Points Above LIBOR 1.40%
No Ratings Or Less Than Baa3 [Member] | No Ratings Or Less Than BBB- [Member]  
Line of Credit Facility [Line Items]  
Unsecured Debt Ratings No ratings or less than BBB-/Baa3
No Ratings Or Less Than Baa3 [Member] | Unsecured Term Loan [Member] | No Ratings Or Less Than BBB- [Member]  
Line of Credit Facility [Line Items]  
Interest Rate - Applicable Basis Points Above LIBOR 1.85%
Baa3 [Member] | BBB- [Member]  
Line of Credit Facility [Line Items]  
Unsecured Debt Ratings BBB- or Baa3 (current interest rate based on Company's election)
Baa3 [Member] | Unsecured Term Loan [Member] | BBB- [Member]  
Line of Credit Facility [Line Items]  
Interest Rate - Applicable Basis Points Above LIBOR 1.40%
Baa2 [Member] | BBB [Member]  
Line of Credit Facility [Line Items]  
Unsecured Debt Ratings BBB or Baa2
Baa2 [Member] | Unsecured Term Loan [Member] | BBB [Member]  
Line of Credit Facility [Line Items]  
Interest Rate - Applicable Basis Points Above LIBOR 1.15%
Baa1 [Member] | BBB+ [Member]  
Line of Credit Facility [Line Items]  
Unsecured Debt Ratings BBB+ or Baa1
Baa1 [Member] | Unsecured Term Loan [Member] | BBB+ [Member]  
Line of Credit Facility [Line Items]  
Interest Rate - Applicable Basis Points Above LIBOR 1.00%
A3 Or Higher [Member] | A- Or Higher [Member]  
Line of Credit Facility [Line Items]  
Unsecured Debt Ratings A- or A3 or higher
A3 Or Higher [Member] | Unsecured Term Loan [Member] | A- Or Higher [Member]  
Line of Credit Facility [Line Items]  
Interest Rate - Applicable Basis Points Above LIBOR 0.90%