Significant Transactions During the Three Months Ended March 31, 2019 and Subsequent Events	3 Months Ended
Mar. 31, 2019
Business Combinations [Abstract]
Significant Transactions During the Three Months Ended March 31, 2019 and Subsequent Events	Significant Transactions During The Three Months Ended March 31, 2019 and Subsequent Events Significant Transactions Acquisitions In March 2019, the Company acquired its joint venture partner’s 45.0% membership interest in One South Market, a multifamily community located in San Jose, CA, for total consideration of $80.6 million. Concurrent with the closing of the acquisition, $86.0 million in mortgage debt was repaid. As a result of this acquisition, the Company realized a gain on remeasurement of co-investment of $31.5 million upon consolidation. Furthermore, the Company recognized $0.8 million in promote income as a result of the transaction, which is included in equity income from co-investments on the condensed consolidated statements of income and comprehensive income. Co-Investments Preferred Equity Investments In March 2019, the Company made a commitment to fund a $36.0 million preferred equity commitment in a multifamily development community located in Irvine, CA. The investment has an initial preferred return of 10.15% and is scheduled to mature in July 2022. As of March 31, 2019, the Company had not funded any of this commitment. In February 2019, the Company funded a $24.5 million related party preferred equity investment in a multifamily development community located in Mountain View, CA. The investment has an initial preferred return of 11.0% and is scheduled to mature in February 2024. See Note 6, Related Party Transactions, for additional details. In February 2019, the Company received cash of $10.9 million, including an early redemption fee of $0.1 million, for the full redemption of a related party preferred equity investment in a joint venture that holds property in San Jose, CA. See Note 6, Related Party Transactions, for additional details. Common Stock In January 2019, the Company repurchased and retired 234,061 shares totaling $57.0 million, including commissions. In February 2019, the board of directors approved the replenishment of the stock repurchase plan such that, as of such date, the Company had $250.0 million of purchase authority remaining under the replenished plan. As a result of the replenishment, as of March 31, 2019, the Company had $250.0 million of purchase authority remaining under the stock repurchase plan. Senior Unsecured Debt In February 2019, the Operating Partnership issued $350.0 million of senior unsecured notes due on March 1, 2029, with a coupon rate of 4.000% (the "2029 Notes"), which are payable on March 1 and September 1 of each year, beginning on September 1, 2019. The 2029 Notes were offered to investors at a price of 99.188% of the principal amount thereof. The 2029 Notes are general unsecured senior obligations of the Operating Partnership, rank equally in right of payment with all other senior unsecured indebtedness of the Operating Partnership and are unconditionally guaranteed by the Company. In March 2019, the Operating Partnership issued an additional $150.0 million of the 2029 Notes at a price of 100.717% of the principal amount thereof. These additional notes have substantially identical terms as the 2029 Notes issued in February 2019. The Company used the net proceeds of these offerings to repay indebtedness under its unsecured lines of credit and for other general corporate and working capital purposes. Mortgage Notes Payable In January 2019, the Company repaid $290.0 million in secured mortgage notes payable with a coupon rate of 5.57% and a stated maturity date of May 2019. The Company realized a gain on early extinguishment of debt of $1.4 million. Subsequent Event In April 2019, the Company received cash of $16.3 million for the full redemption of a preferred equity investment in a joint venture that holds property in Santa Ana, CA.

Significant Transactions During The Three Months Ended March 31, 2019 and Subsequent Events

Significant Transactions

Acquisitions

In March 2019, the Company acquired its joint venture partner’s 45.0% membership interest in One South Market, a multifamily community located in San Jose, CA, for total consideration of $80.6 million. Concurrent with the closing of the acquisition, $86.0 million in mortgage debt was repaid. As a result of this acquisition, the Company realized a gain on remeasurement of co-investment of $31.5 million upon consolidation. Furthermore, the Company recognized $0.8 million in promote income as a result of the transaction, which is included in equity income from co-investments on the condensed consolidated statements of income and comprehensive income.

Co-Investments

Preferred Equity Investments

In March 2019, the Company made a commitment to fund a $36.0 million preferred equity commitment in a multifamily development community located in Irvine, CA. The investment has an initial preferred return of 10.15% and is scheduled to mature in July 2022. As of March 31, 2019, the Company had not funded any of this commitment.

In February 2019, the Company funded a $24.5 million related party preferred equity investment in a multifamily development community located in Mountain View, CA. The investment has an initial preferred return of 11.0% and is scheduled to mature in February 2024. See Note 6, Related Party Transactions, for additional details.

In February 2019, the Company received cash of $10.9 million, including an early redemption fee of $0.1 million, for the full redemption of a related party preferred equity investment in a joint venture that holds property in San Jose, CA. See Note 6, Related Party Transactions, for additional details.

Common Stock

In January 2019, the Company repurchased and retired 234,061 shares totaling $57.0 million, including commissions. In February 2019, the board of directors approved the replenishment of the stock repurchase plan such that, as of such date, the Company had $250.0 million of purchase authority remaining under the replenished plan. As a result of the replenishment, as of March 31, 2019, the Company had $250.0 million of purchase authority remaining under the stock repurchase plan.

Senior Unsecured Debt

In February 2019, the Operating Partnership issued $350.0 million of senior unsecured notes due on March 1, 2029, with a coupon rate of 4.000% (the "2029 Notes"), which are payable on March 1 and September 1 of each year, beginning on September 1, 2019. The 2029 Notes were offered to investors at a price of 99.188% of the principal amount thereof. The 2029 Notes are general unsecured senior obligations of the Operating Partnership, rank equally in right of payment with all other senior unsecured indebtedness of the Operating Partnership and are unconditionally guaranteed by the Company. In March 2019, the Operating Partnership issued an additional $150.0 million of the 2029 Notes at a price of 100.717% of the principal amount thereof. These additional notes have substantially identical terms as the 2029 Notes issued in February 2019. The Company used the net proceeds of these offerings to repay indebtedness under its unsecured lines of credit and for other general corporate and working capital purposes.

Mortgage Notes Payable

In January 2019, the Company repaid $290.0 million in secured mortgage notes payable with a coupon rate of 5.57% and a stated maturity date of May 2019. The Company realized a gain on early extinguishment of debt of $1.4 million.

Subsequent Event

In April 2019, the Company received cash of $16.3 million for the full redemption of a preferred equity investment in a joint venture that holds property in Santa Ana, CA.