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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Tenant and other receivables allowance	$ 3,994	$ 3,333
Deferred rent receivables allowance	$ 264	$ 390
Private perpetual preferred unit liquidation preference (in USD per share)	$ 16.62	$ 16.62
Private perpetual preferred units - issued (in shares)	1,560,360	1,560,360
Private perpetual preferred units - outstanding (in shares)	1,560,360	1,560,360
General partner operating partnership units outstanding (in shares)	157,784,591
Limited partner operating partnership units, outstanding (in shares)	142,583,324
Series PR operating partnership units
Limited partner operating partnership units, outstanding (in shares)	93,469,127	93,075,441
Series ES operating partnership units
Limited partner operating partnership units, outstanding (in shares)	35,061,538	35,729,094
Series 60 operating partnership units
Limited partner operating partnership units, outstanding (in shares)	9,456,808	9,701,402
Series 250 operating partnership units
Limited partner operating partnership units, outstanding (in shares)	4,595,861	4,746,661
ESRT | Series PR operating partnership units
General partner operating partnership units outstanding (in shares)	3,003,679	2,990,931
Limited partner operating partnership units, outstanding (in shares)	154,780,912	152,849,546

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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