Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Commercial real estate properties, at cost:
Land	$ 201,196	$ 201,196
Development costs	8,800	7,989
Building and improvements	2,913,312	2,900,248
Commercial real estate properties, at cost	3,123,308	3,109,433
Less: accumulated depreciation	(886,822)	(862,534)
Commercial real estate properties, net	2,236,486	2,246,899
Cash and cash equivalents	1,008,983	233,946
Restricted cash	36,881	37,651
Tenant and other receivables	22,549	25,423
Deferred rent receivables	229,154	220,960
Prepaid expenses and other assets	40,583	65,453
Deferred costs, net	218,578	228,150
Acquired below-market ground leases, net	350,609	352,566
Right of use assets	29,256	29,307
Goodwill	491,479	491,479
Total assets	4,664,558	3,931,834
Liabilities:
Mortgage notes payable, net	604,763	605,542
Senior unsecured notes, net	973,002	798,392
Unsecured term loan facilities, net	386,568	264,640
Unsecured revolving credit facility, net	546,436	0
Accounts payable and accrued expenses	142,315	143,786
Acquired below-market leases, net	37,623	39,679
Ground lease liabilities	29,256	29,307
Deferred revenue and other liabilities	64,176	72,015
Tenants’ security deposits	30,543	30,560
Total liabilities	2,814,682	1,983,921
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	1,195,885	1,232,433
Accumulated other comprehensive loss	(32,106)	(21,496)
Retained (deficit) earnings	(16,966)	15,764
Total Empire State Realty Trust, Inc.'s stockholders' equity	1,148,584	1,228,520
Non-controlling interests in operating partnership	671,352	690,242
Total equity	1,849,876	1,947,913
Total liabilities and equity	4,664,558	3,931,834
Class A Common Stock
Empire State Realty Trust, Inc. stockholders' equity:
Common stock	1,761	1,809
Class B Common Stock
Empire State Realty Trust, Inc. stockholders' equity:
Common stock	10	10
Private Perpetual Preferred Units, Series 2019
Empire State Realty Trust, Inc. stockholders' equity:
Private perpetual preferred units, issued, value	21,936	21,147
Private Perpetual Preferred Units, Series 2014
Empire State Realty Trust, Inc. stockholders' equity:
Private perpetual preferred units, issued, value	$ 8,004	$ 8,004