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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2019 | Jan. 31, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Cash flows from operating activities: |  |  |  |  |  |  |
Net income |  |  | $ 105,700 | $ 86,110 | $ 329,266 | $ 289,159 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | 360,842 | 359,287 |
Amortization of discount on marketable securities |  |  |  |  | (16,673) | (12,949) |
Amortization of discount (premium) and debt financing costs, net |  |  |  |  | 3,454 | (1,958) |
Gain on sale of marketable securities |  |  |  |  | (737) | (669) |
Unrealized (gain) loss on equity securities recognized through income |  |  |  |  | (4,280) | (426) |
Company's share of gain on the sales of co-investments |  |  |  |  | (870) | 0 |
Earnings from co-investments |  |  |  |  | (54,065) | (64,611) |
Operating distributions from co-investments |  |  |  |  | 64,628 | 80,232 |
Accrued interest from notes and other receivables |  |  |  |  | (4,523) | (4,016) |
Gain on the sale of real estate and land |  |  |  |  | 0 | (22,244) |
Equity-based compensation |  |  |  |  | 6,748 | 7,209 |
Gain on early retirement of debt, net | $ (5,500) | $ (1,400) | (5,475) | 0 | (7,143) | 0 |
Gain on remeasurement of co-investment |  |  | 0 | 0 | (31,535) | 0 |
Changes in operating assets and liabilities: |  |  |  |  |  |  |
Prepaid expenses, receivables, operating lease right-of-use assets, and other assets |  |  |  |  | (4,192) | (4,044) |
Accounts payable, accrued liabilities, and operating lease liabilities |  |  |  |  | 64,281 | 55,469 |
Other liabilities |  |  |  |  | 1,726 | 698 |
Net cash provided by operating activities |  |  |  |  | 706,927 | 681,137 |
Additions to real estate: |  |  |  |  |  |  |
Acquisitions of real estate and acquisition related capital expenditures |  |  |  |  | (93,389) | (7,807) |
Redevelopment |  |  |  |  | (55,027) | (54,656) |
Development acquisitions of and additions to real estate under development |  |  |  |  | (130,593) | (131,867) |
Capital expenditures on rental properties |  |  |  |  | (69,348) | (54,890) |
Investments in notes receivable |  |  |  |  | (140,663) | 0 |
Collections of notes and other receivables |  |  |  |  | 2,500 | 29,500 |
Proceeds from insurance for property losses |  |  |  |  | 3,599 | 1,237 |
Proceeds from dispositions of real estate |  |  |  |  | 0 | 130,730 |
Contributions to co-investments |  |  |  |  | (306,233) | (100,202) |
Changes in refundable deposits |  |  |  |  | 325 | (3,804) |
Purchases of marketable securities |  |  |  |  | (42,653) | (29,130) |
Sales and maturities of marketable securities |  |  |  |  | 57,165 | 22,501 |
Non-operating distributions from co-investments |  |  |  |  | 70,064 | 62,564 |
Net cash used in investing activities |  |  |  |  | (704,253) | (135,824) |
Cash flows from financing activities: |  |  |  |  |  |  |
Proceeds from unsecured debt and mortgage notes |  |  |  |  | 892,762 | 298,773 |
Payments on unsecured debt and mortgage notes |  |  |  |  | (800,746) | (162,317) |
Proceeds from lines of credit |  |  |  |  | 1,485,034 | 454,170 |
Repayments of lines of credit |  |  |  |  | (1,265,034) | (633,170) |
Retirement of common stock |  |  |  |  | (56,989) | (3,774) |
Additions to deferred charges |  |  |  |  | (9,446) | (4,093) |
Net proceeds from issuance of common stock |  |  |  |  | 72,549 | (483) |
Net proceeds from stock options exercised |  |  |  |  | 36,422 | 2,751 |
Payments related to tax withholding for share-based compensation |  |  |  |  | (3,515) | (23) |
Distributions to noncontrolling interest |  |  |  |  | (20,269) | (22,137) |
Redemption of noncontrolling interest |  |  |  |  | (14,180) | (157) |
Redemption of redeemable noncontrolling interest |  |  |  |  | (73) | (43) |
Common and preferred stock dividends paid |  |  |  |  | (378,858) | (361,310) |
Net cash used in financing activities |  |  |  |  | (62,343) | (431,813) |
Net (decrease) increase in unrestricted and restricted cash and cash equivalents |  |  |  |  | (59,669) | 113,500 |
Unrestricted and restricted cash and cash equivalents at beginning of period |  | 151,395 |  |  | 151,395 | 61,126 | $ 61,126
Unrestricted and restricted cash and cash equivalents at end of period | 91,726 |  | 91,726 | 174,626 | 91,726 | 174,626 | 151,395
Supplemental disclosure of cash flow information: |  |  |  |  |  |  |
Cash paid for interest (net of $19.0 million and $13.3 million capitalized in 2019 and 2018, respectively) |  |  |  |  | 145,001 | 146,039 |
Operating cash flows from operating leases |  |  |  |  | 5,097 | 0 |
Supplemental disclosure of noncash investing and financing activities: |  |  |  |  |  |  |
Issuance of DownREIT limited partnership units in connection with acquisition of real estate |  |  |  |  | 65,472 | 0 |
Transfers between real estate under development to rental properties, net |  |  |  |  | 14,501 | 99,547 |
Transfer from real estate under development to co-investments |  |  |  |  | 106 | 640 |
Reclassifications to redeemable noncontrolling interest from additional paid in capital and noncontrolling interest |  |  |  |  | 3,675 | 2,253 |
Redemption of redeemable noncontrolling interest via reduction of note receivable |  |  |  |  | 0 | 4,751 |
Initial recognition of operating lease right-of-use assets |  |  |  |  | 77,645 | 0 |
Initial recognition of operating lease liabilities |  |  |  |  | 79,693 | 0 |
Debt assumed in connection with acquisition |  |  |  |  | 143,006 | 0 |
Repayment of mortgage note from new financing proceeds |  |  |  |  | 0 | 52,000 |
Essex Portfolio, L.P. [Member] |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |
Net income |  |  | 105,700 | 86,110 | 329,266 | 289,159 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | 360,842 | 359,287 |
Amortization of discount on marketable securities |  |  |  |  | (16,673) | (12,949) |
Amortization of discount (premium) and debt financing costs, net |  |  |  |  | 3,454 | (1,958) |
Gain on sale of marketable securities |  |  |  |  | (737) | (669) |
Unrealized (gain) loss on equity securities recognized through income |  |  |  |  | (4,280) | (426) |
Company's share of gain on the sales of co-investments |  |  |  |  | (870) | 0 |
Earnings from co-investments |  |  |  |  | (54,065) | (64,611) |
Operating distributions from co-investments |  |  |  |  | 64,628 | 80,232 |
Accrued interest from notes and other receivables |  |  |  |  | (4,523) | (4,016) |
Gain on the sale of real estate and land |  |  |  |  | 0 | (22,244) |
Equity-based compensation |  |  |  |  | 6,748 | 7,209 |
Gain on early retirement of debt, net |  |  | (5,475) | 0 | (7,143) | 0 |
Gain on remeasurement of co-investment |  |  | 0 | 0 | (31,535) | 0 |
Changes in operating assets and liabilities: |  |  |  |  |  |  |
Prepaid expenses, receivables, operating lease right-of-use assets, and other assets |  |  |  |  | (4,192) | (4,044) |
Accounts payable, accrued liabilities, and operating lease liabilities |  |  |  |  | 64,281 | 55,469 |
Other liabilities |  |  |  |  | 1,726 | 698 |
Net cash provided by operating activities |  |  |  |  | 706,927 | 681,137 |
Additions to real estate: |  |  |  |  |  |  |
Acquisitions of real estate and acquisition related capital expenditures |  |  |  |  | (93,389) | (7,807) |
Redevelopment |  |  |  |  | (55,027) | (54,656) |
Development acquisitions of and additions to real estate under development |  |  |  |  | (130,593) | (131,867) |
Capital expenditures on rental properties |  |  |  |  | (69,348) | (54,890) |
Investments in notes receivable |  |  |  |  | (140,663) | 0 |
Collections of notes and other receivables |  |  |  |  | 2,500 | 29,500 |
Proceeds from insurance for property losses |  |  |  |  | 3,599 | 1,237 |
Proceeds from dispositions of real estate |  |  |  |  | 0 | 130,730 |
Contributions to co-investments |  |  |  |  | (306,233) | (100,202) |
Changes in refundable deposits |  |  |  |  | 325 | (3,804) |
Purchases of marketable securities |  |  |  |  | (42,653) | (29,130) |
Sales and maturities of marketable securities |  |  |  |  | 57,165 | 22,501 |
Non-operating distributions from co-investments |  |  |  |  | 70,064 | 62,564 |
Net cash used in investing activities |  |  |  |  | (704,253) | (135,824) |
Cash flows from financing activities: |  |  |  |  |  |  |
Proceeds from unsecured debt and mortgage notes |  |  |  |  | 892,762 | 298,773 |
Payments on unsecured debt and mortgage notes |  |  |  |  | (800,746) | (162,317) |
Proceeds from lines of credit |  |  |  |  | 1,485,034 | 454,170 |
Repayments of lines of credit |  |  |  |  | (1,265,034) | (633,170) |
Retirement of common stock |  |  |  |  | (56,989) | (3,774) |
Additions to deferred charges |  |  |  |  | (9,446) | (4,093) |
Net proceeds from issuance of common stock |  |  |  |  | 72,549 | (483) |
Net proceeds from stock options exercised |  |  |  |  | 36,422 | 2,751 |
Payments related to tax withholding for share-based compensation |  |  |  |  | (3,515) | (23) |
Distributions to noncontrolling interest |  |  |  |  | (5,978) | (6,615) |
Redemption of noncontrolling interest |  |  |  |  | (14,180) | (157) |
Redemption of redeemable noncontrolling interest |  |  |  |  | (73) | (43) |
Common and preferred stock dividends paid |  |  |  |  | (393,149) | (376,832) |
Net cash used in financing activities |  |  |  |  | (62,343) | (431,813) |
Net (decrease) increase in unrestricted and restricted cash and cash equivalents |  |  |  |  | (59,669) | 113,500 |
Unrestricted and restricted cash and cash equivalents at beginning of period |  | $ 151,395 |  |  | 151,395 | 61,126 | 61,126
Unrestricted and restricted cash and cash equivalents at end of period | $ 91,726 |  | $ 91,726 | $ 174,626 | 91,726 | 174,626 | $ 151,395
Supplemental disclosure of cash flow information: |  |  |  |  |  |  |
Cash paid for interest (net of $19.0 million and $13.3 million capitalized in 2019 and 2018, respectively) |  |  |  |  | 145,001 | 146,039 |
Operating cash flows from operating leases |  |  |  |  | 5,097 | 0 |
Supplemental disclosure of noncash investing and financing activities: |  |  |  |  |  |  |
Issuance of DownREIT limited partnership units in connection with acquisition of real estate |  |  |  |  | 65,472 | 0 |
Transfers between real estate under development to rental properties, net |  |  |  |  | 14,501 | 99,547 |
Transfer from real estate under development to co-investments |  |  |  |  | 106 | 640 |
Reclassifications to redeemable noncontrolling interest from additional paid in capital and noncontrolling interest |  |  |  |  | 3,675 | 2,253 |
Redemption of redeemable noncontrolling interest via reduction of note receivable |  |  |  |  | 0 | 4,571 |
Initial recognition of operating lease right-of-use assets |  |  |  |  | 77,645 | 0 |
Initial recognition of operating lease liabilities |  |  |  |  | 79,693 | 0 |
Debt assumed in connection with acquisition |  |  |  |  | 143,006 | 0 |
Repayment of mortgage note from new financing proceeds |  |  |  |  | $ 0 | $ 52,000 |

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- Definition Amount of increase (decrease) in prepaid expenses, and assets classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Amount of increase (decrease) in marketable securities and investments pledged or subject to withdrawal restrictions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 + Details
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- Definition The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 + Details
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow during the period for redemption of redeemable noncontrolling interests. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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