Organization	12 Months Ended
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization The accompanying consolidated financial statements present the accounts of Essex Property Trust, Inc. (“Essex”, “ESS”, or the “Company”), which include the accounts of the Company and Essex Portfolio, L.P. and subsidiaries (the “Operating Partnership,” which holds the operating assets of the Company). Unless otherwise indicated, the notes to consolidated financial statements apply to both the Company and the Operating Partnership. ESS is the sole general partner in the Operating Partnership with a 96.7% general partner interest and the limited partners owned a 3.3% interest as of December 31, 2016. The limited partners may convert their Operating Partnership units into an equivalent number of shares of common stock. Total Operating Partnership limited partnership units outstanding were 2,237,290 and 2,214,545 as of December 31, 2016 and 2015, respectively, and the redemption value of the units, based on the closing price of the Company’s common stock totaled approximately $520.2 million and $530.2 million, as of December 31, 2016 and 2015, respectively. The Company has reserved shares of common stock for such conversions. As of December 31, 2016, the Company owned or had ownership interests in 245 apartment communities, (aggregating 59,645 apartment homes), two operating commercial buildings, and six active development projects (collectively, the “Portfolio”). The communities are located in Southern California (Los Angeles, Orange, San Diego, and Ventura counties), Northern California (the San Francisco Bay Area) and the Seattle metropolitan areas. On April 1, 2014, Essex completed the merger with BRE Properties, Inc. (“BRE”). In connection with the closing of the merger, (1) BRE merged into a wholly owned subsidiary of Essex, and (2) each outstanding share of BRE common stock was converted into (i) 0.2971 shares (the “Stock Consideration”) of Essex common stock, and (ii) $7.18 in cash, (the “Cash Consideration”), plus cash in lieu of fractional shares for total consideration of approximately $4.3 billion. The Cash Consideration was adjusted as a result of the authorization and declaration of a special distribution to the stockholders of BRE of $5.15 per share of BRE common stock payable to BRE stockholders of record as of the close of business on March 31, 2014 (the “Special Dividend”). The Special Dividend was payable as a result of the closing of the sale of certain interests in assets of BRE to certain parties, which closed on March 31, 2014. Pursuant to the terms of the merger agreement, the amounts payable as a Special Dividend reduced the Cash Consideration of $12.33 payable by Essex in the merger to $7.18 per share of BRE common stock. Essex issued approximately 23.1 million shares of Essex common stock as Stock Consideration in the merger. For purchase accounting, the value of the common stock issued by Essex upon the consummation of the merger was determined based on the closing price of BRE’s common stock on the closing date of the merger. As a result of Essex being admitted to the S&P 500 on the same date as the closing of the merger, Essex’s common stock price experienced significantly higher than usual trading volume and the closing price of $174 per share was significantly higher than its volume-weighted average trading price for the days before and after April 1, 2014. BRE’s common stock did not experience the same proportionate increase in common stock price leading up to April 1, 2014. As a result, given that a substantial component of the purchase price is an exchange of equity instruments, Essex used the closing price of BRE’s common stock on April 1, 2014 of $61 per share, less the Cash Consideration, as the fair value of the equity consideration. After deducting the Special Dividend and the Cash Consideration per share, this resulted in a value of $48.67 per share of BRE common stock which is the equivalent of approximately $164 per share of Essex common stock issued.

Organization

The accompanying consolidated financial statements present the accounts of Essex Property Trust, Inc. (“Essex”, “ESS”, or the “Company”), which include the accounts of the Company and Essex Portfolio, L.P. and subsidiaries (the “Operating Partnership,” which holds the operating assets of the Company). Unless otherwise indicated, the notes to consolidated financial statements apply to both the Company and the Operating Partnership.

ESS is the sole general partner in the Operating Partnership with a 96.7% general partner interest and the limited partners owned a 3.3% interest as of December 31, 2016. The limited partners may convert their Operating Partnership units into an equivalent number of shares of common stock. Total Operating Partnership limited partnership units outstanding were 2,237,290 and 2,214,545 as of December 31, 2016 and 2015, respectively, and the redemption value of the units, based on the closing price of the Company’s common stock totaled approximately $520.2 million and $530.2 million, as of December 31, 2016 and 2015, respectively. The Company has reserved shares of common stock for such conversions.

As of December 31, 2016, the Company owned or had ownership interests in 245 apartment communities, (aggregating 59,645 apartment homes), two operating commercial buildings, and six active development projects (collectively, the “Portfolio”). The communities are located in Southern California (Los Angeles, Orange, San Diego, and Ventura counties), Northern California (the San Francisco Bay Area) and the Seattle metropolitan areas.

On April 1, 2014, Essex completed the merger with BRE Properties, Inc. (“BRE”). In connection with the closing of the merger, (1) BRE merged into a wholly owned subsidiary of Essex, and (2) each outstanding share of BRE common stock was converted into (i) 0.2971 shares (the “Stock Consideration”) of Essex common stock, and (ii) $7.18 in cash, (the “Cash Consideration”), plus cash in lieu of fractional shares for total consideration of approximately $4.3 billion. The Cash Consideration was adjusted as a result of the authorization and declaration of a special distribution to the stockholders of BRE of $5.15 per share of BRE common stock payable to BRE stockholders of record as of the close of business on March 31, 2014 (the “Special Dividend”). The Special Dividend was payable as a result of the closing of the sale of certain interests in assets of BRE to certain parties, which closed on March 31, 2014. Pursuant to the terms of the merger agreement, the amounts payable as a Special Dividend reduced the Cash Consideration of $12.33 payable by Essex in the merger to $7.18 per share of BRE common stock.

Essex issued approximately 23.1 million shares of Essex common stock as Stock Consideration in the merger. For purchase accounting, the value of the common stock issued by Essex upon the consummation of the merger was determined based on the closing price of BRE’s common stock on the closing date of the merger. As a result of Essex being admitted to the S&P 500 on the same date as the closing of the merger, Essex’s common stock price experienced significantly higher than usual trading volume and the closing price of $174 per share was significantly higher than its volume-weighted average trading price for the days before and after April 1, 2014. BRE’s common stock did not experience the same proportionate increase in common stock price leading up to April 1, 2014. As a result, given that a substantial component of the purchase price is an exchange of equity instruments, Essex used the closing price of BRE’s common stock on April 1, 2014 of $61 per share, less the Cash Consideration, as the fair value of the equity consideration. After deducting the Special Dividend and the Cash Consideration per share, this resulted in a value of $48.67 per share of BRE common stock which is the equivalent of approximately $164 per share of Essex common stock issued.