Consolidated Balance Sheets (USD $)	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Land and leasehold interests	$ 772,980,000	$ 771,960,000
Buildings and improvements	3,988,926,000	3,970,177,000
Tenant improvements	487,086,000	470,098,000
Furniture, fixtures and equipment	4,289,000	4,485,000
Gross investment in rental property	5,253,281,000	5,216,720,000
Less - accumulated depreciation and amortization	(1,369,218,000)	(1,278,985,000)
Net investment in rental property	3,884,063,000	3,937,735,000
Cash and cash equivalents	15,854,000	21,851,000
Investments in unconsolidated joint ventures	31,991,000	34,220,000
Unbilled rents receivable, net	131,867,000	126,917,000
Deferred charges and other assets, net	217,850,000	212,038,000
Restricted cash	19,631,000	17,310,000
Accounts receivable, net of allowance for doubtful accounts of $2,575 and $2,790	8,616,000	12,395,000
Total assets	4,309,872,000	4,362,466,000
LIABILITIES AND EQUITY
Senior unsecured notes	1,119,063,000	1,118,451,000
Revolving credit facility	27,000,000	228,000,000
Mortgages, loans payable and other obligations	740,437,000	743,043,000
Dividends and distributions payable	45,461,000	42,176,000
Accounts payable, accrued expenses and other liabilities	130,391,000	101,944,000
Rents received in advance and security deposits	52,224,000	57,877,000
Accrued interest payable	16,875,000	27,038,000
Total liabilities	2,131,451,000	2,318,529,000
Commitments and contingencies
Equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized, 10,000 and 10,000 shares outstanding, at liquidation preference		25,000,000
Common stock, $0.01 par value, 190,000,000 shares authorized, 87,141,716 and 79,605,474 shares outstanding	871,000	796,000
Additional paid-in capital	2,521,437,000	2,292,641,000
Dividends in excess of net earnings	(624,110,000)	(560,165,000)
Total Mack-Cali Realty Corporation stockholders' equity	1,898,198,000	1,758,272,000
Noncontrolling interests in subsidiaries:
Operating Partnership	278,192,000	283,219,000
Consolidated joint ventures	2,031,000	2,446,000
Total noncontrolling interests in subsidiaries	280,223,000	285,665,000
Total equity	2,178,421,000	2,043,937,000
Total liabilities and equity	$ 4,309,872,000	$ 4,362,466,000