Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Commercial real estate properties, at cost:
Land	$ 201,196	$ 201,196
Development costs	7,479	6,986
Building and improvements	2,036,187	1,931,681
Commercial real estate properties, at cost, gross	2,244,862	2,139,863
Less: accumulated depreciation	(445,549)	(377,552)
Commercial real estate properties, net	1,799,313	1,762,311
Cash and cash equivalents	46,388	45,732
Restricted cash	64,899	60,273
Tenant and other receivables, net of allowance of $2,742 and $1,427 in 2015 and 2014, respectively	32,406	23,745
Deferred rent receivables, net of allowance of $99 and $420 in 2015 and 2014, respectively	116,208	102,104
Prepaid expenses and other assets	33,759	48,504
Deferred costs, net	338,466	370,460
Acquired below-market ground leases, net	385,849	391,887
Goodwill	491,479	491,479
Total assets	3,308,767	3,296,495
Liabilities:
Mortgage notes payable	754,738	903,985
Senior unsecured notes	589,670	237,667
Unsecured term loan facility	265,000	0
Unsecured revolving credit facility	20,000	0
Term loan and credit facility	0	470,000
Accounts payable and accrued expenses	106,699	96,563
Acquired below-market leases, net	112,312	138,859
Deferred revenue and other liabilities	38,066	27,876
Tenants’ security deposits	49,672	40,448
Total liabilities	$ 1,936,157	$ 1,915,398
Commitments and contingencies
Empire State Realty Trust, Inc. stockholders' equity:
Preferred stock, $0.01 par value per share, 50,000,000 shares authorized, none issued or outstanding	$ 0	$ 0
Additional paid-in capital	460,160	406,853
Accumulated other comprehensive loss	(1,903)	0
Retained earnings	57,135	60,713
Total Empire State Realty Trust, Inc.'s stockholders' equity	516,571	468,638
Non-controlling interests in operating partnership	848,035	904,455
Private perpetual preferred units, $16.62 per unit liquidation preference, 1,560,360 issued and outstanding in 2015 and 2014	8,004	8,004
Total equity	1,372,610	1,381,097
Total liabilities and equity	3,308,767	3,296,495
Class A Common Stock
Empire State Realty Trust, Inc. stockholders' equity:
Common stock	1,168	1,060
Class B Common Stock
Empire State Realty Trust, Inc. stockholders' equity:
Common stock	$ 11	$ 12