Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Commercial real estate properties, at cost:
Land	$ 201,196	$ 201,196
Development costs	7,989	7,987
Building and improvements	2,830,353	2,675,303
Commercial real estate properties, at cost	3,039,538	2,884,486
Less: accumulated depreciation	(829,495)	(747,304)
Commercial real estate properties, net	2,210,043	2,137,182
Cash and cash equivalents	293,710	204,981
Restricted cash	36,609	65,832
Short-term investments	0	400,000
Tenant and other receivables, net of allowance of $488 as of December 31, 2018	29,287	29,437
Deferred rent receivables, net of allowance of $19 as of December 31, 2018	214,685	200,903
Prepaid expenses and other assets	41,927	64,345
Deferred costs, net	223,698	241,223
Acquired below-market ground leases, net	354,524	360,398
Right of use assets	29,355
Goodwill	491,479	491,479
Total assets	3,925,317	4,195,780
Liabilities:
Mortgage notes payable, net	606,313	608,567
Senior unsecured notes, net	798,347	1,046,219
Unsecured term loan facility, net	264,517	264,147
Unsecured revolving credit facility	0	0
Accounts payable and accrued expenses	143,201	130,676
Acquired below-market leases, net	42,655	52,450
Ground lease liabilities	29,355
Deferred revenue and other liabilities	68,742	44,810
Tenants’ security deposits	31,841	57,802
Total liabilities	1,984,971	2,204,671
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	1,226,269	1,204,075
Accumulated other comprehensive loss	(24,110)	(8,853)
Retained earnings	18,059	41,511
Total Empire State Realty Trust, Inc.'s stockholders' equity	1,222,019	1,238,482
Non-controlling interests in operating partnership	710,323	744,623
Private perpetual preferred units, $16.62 per unit liquidation preference, 1,560,360 issued and outstanding in 2019 and 2018	8,004	8,004
Total equity	1,940,346	1,991,109
Total liabilities and equity	3,925,317	4,195,780
Class A Common Stock
Common stock	1,791	1,739
Class B Common Stock
Common stock	$ 10	$ 10