XML 63 R42.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Earnings Per Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] | The following tables set forth the computation of net income per share – basic and net income per share – diluted for the Company (amounts in thousands except per share amounts):
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Numerator for net income per share – basic: |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 907,621 |  |  | $ | 657,101 |  |  | $ | (168,174 | )
Allocation to Noncontrolling Interests – Operating Partnership, net | (34,226 | ) |  | (24,771 | ) |  | 6,834 |
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties | (3,657 | ) |  | (2,544 | ) |  | 538 |
Preferred distributions | (3,357 | ) |  | (4,145 | ) |  | (4,145 | )
Premium on redemption of Preferred Shares | (3,486 | ) |  | — |  |  | — |
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests | 862,895 |  |  | 625,641 |  |  | (164,947 | )
Discontinued operations, net of Noncontrolling Interests | 382 |  |  | 1,522 |  |  | 1,991,415 |
Numerator for net income per share – basic | $ | 863,277 |  |  | $ | 627,163 |  |  | $ | 1,826,468 |
Numerator for net income per share – diluted (1): |  |  |  |  |
Income from continuing operations | $ | 907,621 |  |  | $ | 657,101 |  |  |
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties | (3,657 | ) |  | (2,544 | ) |  |
Preferred distributions | (3,357 | ) |  | (4,145 | ) |  |
Premium on redemption of Preferred Shares | (3,486 | ) |  | — |  |  |
Income from continuing operations available to Common Shares | 897,121 |  |  | 650,412 |  |  |
Discontinued operations, net | 397 |  |  | 1,582 |  |  |
Numerator for net income per share – diluted (1) | $ | 897,518 |  |  | $ | 651,994 |  |  | $ | 1,826,468 |
Denominator for net income per share – basic and diluted (1): |  |  |  |  |
Denominator for net income per share – basic | 363,498 |  |  | 361,181 |  |  | 354,305 |
Effect of dilutive securities: |  |  |  |  |
OP Units | 13,576 |  |  | 13,718 |  |  |
Long-term compensation shares/units | 3,546 |  |  | 2,836 |  |  |
Denominator for net income per share – diluted (1) | 380,620 |  |  | 377,735 |  |  | 354,305 |
Net income per share – basic | $ | 2.37 |  |  | $ | 1.74 |  |  | $ | 5.16 |
Net income per share – diluted | $ | 2.36 |  |  | $ | 1.73 |  |  | $ | 5.16 |
Net income per share – basic: |  |  |  |  |  |  |  |
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests | $ | 2.37 |  |  | $ | 1.73 |  |  | $ | (0.47 | )
Discontinued operations, net of Noncontrolling Interests | — |  |  | 0.01 |  |  | 5.63 |
Net income per share – basic | $ | 2.37 |  |  | $ | 1.74 |  |  | $ | 5.16 |
Net income per share – diluted (1): |  |  |  |  |  |  |  |
Income (loss) from continuing operations available to Common Shares | $ | 2.36 |  |  | $ | 1.72 |  |  | $ | (0.47 | )
Discontinued operations, net | — |  |  | 0.01 |  |  | 5.63 |
Net income per share – diluted | $ | 2.36 |  |  | $ | 1.73 |  |  | $ | 5.16 |
(1) | Potential common shares issuable from the assumed conversion of OP Units and the exercise/vesting of long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per share calculation as the Company had a loss from continuing operations for the year ended December 31, 2013.
ERPOP [Member] |
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] | The following tables set forth the computation of net income per Unit – basic and net income per Unit – diluted for the Operating Partnership (amounts in thousands except per Unit amounts):
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Numerator for net income per Unit – basic and diluted (1): |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ | 907,621 |  |  | $ | 657,101 |  |  | $ | (168,174 | )
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties | (3,657 | ) |  | (2,544 | ) |  | 538 |
Allocation to Preference Units | (3,357 | ) |  | (4,145 | ) |  | (4,145 | )
Allocation to premium on redemption of Preference Units | (3,486 | ) |  | — |  |  | — |
Income (loss) from continuing operations available to Units | 897,121 |  |  | 650,412 |  |  | (171,781 | )
Discontinued operations, net | 397 |  |  | 1,582 |  |  | 2,073,527 |
Numerator for net income per Unit – basic and diluted (1) | $ | 897,518 |  |  | $ | 651,994 |  |  | $ | 1,901,746 |
Denominator for net income per Unit – basic and diluted (1): |  |  |  |  |
Denominator for net income per Unit – basic | 377,074 |  |  | 374,899 |  |  | 368,038 |
Effect of dilutive securities: |  |  |  |  |
Dilution for Units issuable upon assumed exercise/vesting of the Company's long-term compensation shares/units | 3,546 |  |  | 2,836 |  |  |
Denominator for net income per Unit – diluted (1) | 380,620 |  |  | 377,735 |  |  | 368,038 |
Net income per Unit – basic | $ | 2.37 |  |  | $ | 1.74 |  |  | $ | 5.16 |
Net income per Unit – diluted | $ | 2.36 |  |  | $ | 1.73 |  |  | $ | 5.16 |
Net income per Unit – basic: |  |  |  |  |  |  |  |
Income (loss) from continuing operations available to Units | $ | 2.37 |  |  | $ | 1.73 |  |  | $ | (0.47 | )
Discontinued operations, net | — |  |  | 0.01 |  |  | 5.63 |
Net income per Unit – basic | $ | 2.37 |  |  | $ | 1.74 |  |  | $ | 5.16 |
Net income per Unit – diluted (1): |  |  |  |  |  |  |  |
Income (loss) from continuing operations available to Units | $ | 2.36 |  |  | $ | 1.72 |  |  | $ | (0.47 | )
Discontinued operations, net | — |  |  | 0.01 |  |  | 5.63 |
Net income per Unit – diluted | $ | 2.36 |  |  | $ | 1.73 |  |  | $ | 5.16 |
(1) | Potential Units issuable from the assumed exercise/vesting of the Company's long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per Unit calculation as the Operating Partnership had a loss from continuing operations for the year ended December 31, 2013.

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=eqr_ERPOPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |