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Transactions with Related Parties	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Transactions with Related Parties	15. Transactions with Related Parties The Company leases its corporate headquarters from an entity controlled by EQR’s Chairman of the Board of Trustees.  The lease terminates on January 31, 2022.  Amounts incurred for such office space for the years ended December 31, 2018, 2017 and 2016, respectively, were approximately $2.5 million, $2.8 million and $2.7 million.  The Company believes these amounts equal market rates for such rental space.

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- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-URI http://asc.fasb.org/topic&trid=2122745

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