Unsecured Revolving Credit Facility (Schedule Of Unsecured Credit Rating And Facility Fee) (Details) - Unsecured Revolving Credit Facility [Member]	6 Months Ended
	Jun. 30, 2016
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
Interest Rate - Applicable Basis Points Above LIBOR	1.70%
Facility Fee Basis Points	0.35%
Baa3 [Member] \| BBB- Rating [Member]
Line Of Credit Facility [Line Items]
Unsecured Debt Ratings	BBB- or Baa3 (current)
Interest Rate - Applicable Basis Points Above LIBOR	1.30%
Facility Fee Basis Points	0.30%
Baa2 [Member] \| BBB [Member]
Line Of Credit Facility [Line Items]
Unsecured Debt Ratings	BBB or Baa2
Interest Rate - Applicable Basis Points Above LIBOR	1.10%
Facility Fee Basis Points	0.20%
Baa1 [Member] \| BBB+ [Member]
Line Of Credit Facility [Line Items]
Unsecured Debt Ratings	BBB+ or Baa1
Interest Rate - Applicable Basis Points Above LIBOR	1.00%
Facility Fee Basis Points	0.15%
A3 Or Higher [Member] \| A- Or Higher [Member]
Line Of Credit Facility [Line Items]
Unsecured Debt Ratings	A- or A3 or higher
Interest Rate - Applicable Basis Points Above LIBOR	0.925%
Facility Fee Basis Points	0.125%

MACK CALI REALTY L P 10-Q