Related Party Transactions	12 Months Ended
Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The Company has adopted written related party transaction guidelines that are intended to cover transactions in which the Company (including entities it controls) is a party and in which any “related person” has a direct or indirect interest. A “related person” means any Company director, director nominee, or executive officer, any beneficial owner of more than 5% of the Company’s outstanding common stock, and any immediate family member of any of the foregoing persons. A related person may be considered to have an indirect interest in a transaction if he or she (i) is an owner, director, officer or employee of or otherwise associated with another company that is engaging in a transaction with the Company, or (ii) otherwise, through one or more entities or arrangements, has an indirect financial interest in or personal benefit from the transaction. The related person transaction review and approval process is intended to determine, among any other relevant issues, the dollar amount involved in the transaction; the nature and value of any related person’s direct or indirect interest (if any) in the transaction; and whether or not (i) a related person’s interest is material, (ii) the transaction is fair, reasonable, and serves the best interest of the Company and its shareholders, and (iii) whether the transaction or relationship should be entered into, continued or ended. The Company’s Chairman and founder, Mr. George Marcus, is the Chairman of the Marcus & Millichap Company (“MMC”), which is a parent company of a diversified group of real estate service, investment, and development firms. Mr. Marcus is also the Co-Chairman of Marcus & Millichap, Inc. (“MMI”), and Mr. Marcus owns a controlling interest in MMI. MMI is a national brokerage firm listed on the NYSE that underwent its initial public offering in 2013. Fund II paid brokerage commissions totaling $0.6 million and $0.4 million, respectively, to an affiliate of MMI related to the sales of properties in 2013 and 2012, respectively. There were no brokerage commissions paid by the Company to MMI or its affiliates during 2014, 2013, and 2012. The Company charges certain fees to its co-investments for asset management, property management, development and redevelopment services. These fees from affiliates total $16.5 million, $11.5 million, and $10.9 million for the years ended December 31, 2014, 2013, and 2012, respectively. All of these fees are net of intercompany amounts eliminated by the Company. In July 2014, the Company acquired Paragon Apartments, a 301 unit apartment community located in Fremont, CA for $111.0 million from an entity that was partially owned by an affiliate of MMC. Independent members of the Company's Board of Directors that serve on the Nominating and Corporate Governance and Audit Committees approved the investment. As described in Note 4, the Company has provided short-term bridge loans to affiliates. As of December 31, 2014, $8.1 million of short-term loans remained outstanding from various legacy and BRE joint ventures. In 2012, the Company provided a $26.0 million short-term bridge loan to Wesco III at a rate of LIBOR plus 2.50% to assist with the purchase of Haver Hill in 2012. The short term bridge loan was repaid in March 2013. As described in Note 3, the Company restructured the terms of a preferred equity investment in a property located in Anaheim, California, reducing the rate from 13% to 9%, while extending the maximum term by one year. The Company recorded $0.4 million of income related to the restructured investment. The entity that owns the property is an affiliate of MMC. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors that serve on the Nominating and Corporate Governance and Audit Committees approved the restructuring of the investment in this entity. In January 2013, the Company invested $8.6 million as a preferred equity interest investment in an entity affiliated with MMC that owns an apartment development in Redwood City, California. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors that serve on the Nominating and Corporate Governance and Audit Committees approved the investment in this entity. In 2012, the Company invested $14.0 million as a preferred equity interest investment in an entity affiliated with MMC that owns an apartment community in Cupertino, California. The investment has a preferred return of 9.5% and matures in May 2016. The Company expects to invest an additional $4.0 million in preferred equity to fund renovation costs. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors approved the investment in this entity. In 2012, the Company acquired Montebello, a 248 unit apartment community in Kirkland, Washington for $52.0 million from an entity affiliated with MMC, and Wesco I acquired Riley Square (formerly Waterstone Santa Clara), a 156 unit apartment community in Santa Clara, California for $38.3 million from an entity affiliated with MMC. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors approved the acquisitions of Montebello and Riley Square. An Executive Vice President of the Company invested $4.0 million for a 3% limited partnership interest in a partnership with the Company that owns Essex Skyline at MacArthur Place. The Executive Vice President’s investment is equal to a pro-rata share of the contributions to the limited partnership. The Executive Vice President’s investment also receives pro-rata distributions resulting from distributable cash generated by the property if and when distributions are made.

Related Party Transactions

The Company has adopted written related party transaction guidelines that are intended to cover transactions in which the Company (including entities it controls) is a party and in which any “related person” has a direct or indirect interest. A “related person” means any Company director, director nominee, or executive officer, any beneficial owner of more than 5% of the Company’s outstanding common stock, and any immediate family member of any of the foregoing persons. A related person may be considered to have an indirect interest in a transaction if he or she (i) is an owner, director, officer or employee of or otherwise associated with another company that is engaging in a transaction with the Company, or (ii) otherwise, through one or more entities or arrangements, has an indirect financial interest in or personal benefit from the transaction.

The related person transaction review and approval process is intended to determine, among any other relevant issues, the dollar amount involved in the transaction; the nature and value of any related person’s direct or indirect interest (if any) in the transaction; and whether or not (i) a related person’s interest is material, (ii) the transaction is fair, reasonable, and serves the best interest of the Company and its shareholders, and (iii) whether the transaction or relationship should be entered into, continued or ended.

The Company’s Chairman and founder, Mr. George Marcus, is the Chairman of the Marcus & Millichap Company (“MMC”), which is a parent company of a diversified group of real estate service, investment, and development firms. Mr. Marcus is also the Co-Chairman of Marcus & Millichap, Inc. (“MMI”), and Mr. Marcus owns a controlling interest in MMI. MMI is a national brokerage firm listed on the NYSE that underwent its initial public offering in 2013. Fund II paid brokerage commissions totaling $0.6 million and $0.4 million, respectively, to an affiliate of MMI related to the sales of properties in 2013 and 2012, respectively. There were no brokerage commissions paid by the Company to MMI or its affiliates during 2014, 2013, and 2012.

The Company charges certain fees to its co-investments for asset management, property management, development and redevelopment services. These fees from affiliates total $16.5 million, $11.5 million, and $10.9 million for the years ended December 31, 2014, 2013, and 2012, respectively. All of these fees are net of intercompany amounts eliminated by the Company.

In July 2014, the Company acquired Paragon Apartments, a 301 unit apartment community located in Fremont, CA for $111.0 million from an entity that was partially owned by an affiliate of MMC. Independent members of the Company's Board of Directors that serve on the Nominating and Corporate Governance and Audit Committees approved the investment.

As described in Note 4, the Company has provided short-term bridge loans to affiliates. As of December 31, 2014, $8.1 million of short-term loans remained outstanding from various legacy and BRE joint ventures.

In 2012, the Company provided a $26.0 million short-term bridge loan to Wesco III at a rate of LIBOR plus 2.50% to assist with the purchase of Haver Hill in 2012. The short term bridge loan was repaid in March 2013.

As described in Note 3, the Company restructured the terms of a preferred equity investment in a property located in Anaheim, California, reducing the rate from 13% to 9%, while extending the maximum term by one year. The Company recorded $0.4 million of income related to the restructured investment. The entity that owns the property is an affiliate of MMC. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors that serve on the Nominating and Corporate Governance and Audit Committees approved the restructuring of the investment in this entity.

In January 2013, the Company invested $8.6 million as a preferred equity interest investment in an entity affiliated with MMC that owns an apartment development in Redwood City, California. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors that serve on the Nominating and Corporate Governance and Audit Committees approved the investment in this entity.

In 2012, the Company invested $14.0 million as a preferred equity interest investment in an entity affiliated with MMC that owns an apartment community in Cupertino, California. The investment has a preferred return of 9.5% and matures in May 2016. The Company expects to invest an additional $4.0 million in preferred equity to fund renovation costs. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors approved the investment in this entity.

In 2012, the Company acquired Montebello, a 248 unit apartment community in Kirkland, Washington for $52.0 million from an entity affiliated with MMC, and Wesco I acquired Riley Square (formerly Waterstone Santa Clara), a 156 unit apartment community in Santa Clara, California for $38.3 million from an entity affiliated with MMC. Independent directors (other than Mr. Marcus) on the Company’s Board of Directors approved the acquisitions of Montebello and Riley Square.

An Executive Vice President of the Company invested $4.0 million for a 3% limited partnership interest in a partnership with the Company that owns Essex Skyline at MacArthur Place. The Executive Vice President’s investment is equal to a pro-rata share of the contributions to the limited partnership. The Executive Vice President’s investment also receives pro-rata distributions resulting from distributable cash generated by the property if and when distributions are made.