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Organization and Basis of Presentation (Tables) | 9 Months Ended
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Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Components of marketable securities | As of September 30, 2016 and December 31, 2015, marketable securities consist of the following (in thousands):
| September 30, 2016
| Amortized Cost |  | Gross Unrealized Gain |  | Carrying Value
Available for sale: |  |  |  |  |
Investment-grade unsecured bonds | $ | 19,604 |  |  | $ | 416 |  |  | $ | 20,020 |
Investment funds - U.S. treasuries | 7,598 |  |  | 2 |  |  | 7,600 |
Common stock and stock funds | 29,901 |  |  | 5,232 |  |  | 35,133 |
Held to maturity: |  |  |  |  |  |  |  |
Mortgage backed securities | 90,950 |  |  | — |  |  | 90,950 |
Total - Marketable securities | $ | 148,053 |  |  | $ | 5,650 |  |  | $ | 153,703 |
| December 31, 2015
| Amortized Cost |  | Gross Unrealized Gain (Loss) |  | Carrying Value
Available for sale: |  |  |  |  |  |  |  |
Investment-grade unsecured bonds | $ | 11,618 |  |  | $ | 68 |  |  | $ | 11,686 |
Investment funds - U.S. treasuries | 3,675 |  |  | (9 | ) |  | 3,666 |
Common stock and stock funds | 34,655 |  |  | 7,091 |  |  | 41,746 |
Held to maturity: |  |  |  |  |  |  |  |
Mortgage backed securities | 80,387 |  |  | — |  |  | 80,387 |
Total - Marketable securities | $ | 130,335 |  |  | $ | 7,150 |  |  | $ | 137,485 |
Changes in accumulated other comprehensive income (loss) | Essex Property Trust, Inc. (in thousands)
| Change in fair value and amortization of swap settlements |  | Unrealized gains on available for sale securities |  | Total
Balance at December 31, 2015 | $ | (48,366 | ) |  | $ | 6,355 |  |  | $ | (42,011 | )
Other comprehensive (loss) income before reclassification | (4,618 | ) |  | 1,330 |  |  | (3,288 | )
Amounts reclassified from accumulated other comprehensive loss | 7,985 |  |  | (2,781 | ) |  | 5,204 |
Other comprehensive income (loss) | 3,367 |  |  | (1,451 | ) |  | 1,916 |
Balance at September 30, 2016 | $ | (44,999 | ) |  | $ | 4,904 |  |  | $ | (40,095 | )
Changes in Accumulated Other Comprehensive Loss, by Component Essex Portfolio, L.P. (in thousands):
| Change in fair value and amortization of swap settlements |  | Unrealized gains on available for sale securities |  | Total
Balance at December 31, 2015 | $ | (46,087 | ) |  | $ | 6,489 |  |  | $ | (39,598 | )
Other comprehensive (loss) income before reclassification | (4,775 | ) |  | 1,376 |  |  | (3,399 | )
Amounts reclassified from accumulated other comprehensive loss | 8,256 |  |  | (2,876 | ) |  | 5,380 |
Other comprehensive income (loss) | 3,481 |  |  | (1,500 | ) |  | 1,981 |
Balance at September 30, 2016 | $ | (42,606 | ) |  | $ | 4,989 |  |  | $ | (37,617 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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