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UNAUDITED SUMMARIZED CONSOLIDATED QUARTERLY FINANCIAL DATA (UNITED DOMINION REALTY, L.P.) | 12 Months Ended
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Dec. 31, 2019
Entity information |
UNAUDITED SUMMARIZED CONSOLIDATED QUARTERLY FINANCIAL DATA | 17. UNAUDITED SUMMARIZED CONSOLIDATED QUARTERLY FINANCIAL DATA Selected consolidated quarterly financial data for the years ended December 31, 2019 and 2018 is summarized in the table below (dollars in thousands, except per share amounts):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | March 31, | ​ | June 30, | ​ | September 30, | ​ | December 31,
2019 |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Rental income | ​ | $ | 267,922 | ​ | $ | 278,463 | ​ | $ | 289,008 | ​ | $ | 302,745
Net income/(loss) | ​ |  | 26,602 | ​ |  | 38,318 | ​ |  | 29,422 | ​ |  | 105,237
Net income/(loss) attributable to common stockholders (a) | ​ |  | 23,492 | ​ |  | 34,588 | ​ |  | 26,173 | ​ |  | 96,928
Income/(loss) attributable to common stockholders per weighted average common share (a): | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Basic | ​ | $ | 0.08 | ​ | $ | 0.12 | ​ | $ | 0.09 | ​ | $ | 0.33
Diluted | ​ | $ | 0.08 | ​ | $ | 0.12 | ​ | $ | 0.09 | ​ | $ | 0.33
Weighted average number of common shares outstanding: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Basic | ​ |  | 277,002 | ​ |  | 281,960 | ​ |  | 288,706 | ​ |  | 293,107
Diluted | ​ |  | 277,557 | ​ |  | 282,575 | ​ |  | 289,529 | ​ |  | 294,073
2018 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Rental income | ​ | $ | 250,483 | ​ | $ | 256,634 | ​ | $ | 263,256 | ​ | $ | 264,732
Net income/(loss) | ​ |  | 89,225 | ​ |  | 22,444 | ​ |  | 20,258 | ​ |  | 89,615
Net income/(loss) attributable to common stockholders (a) | ​ |  | 80,801 | ​ |  | 19,630 | ​ |  | 17,639 | ​ |  | 81,168
Income/(loss) attributable to common stockholders per weighted average common share (a): | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Basic | ​ | $ | 0.30 | ​ | $ | 0.07 | ​ | $ | 0.07 | ​ | $ | 0.30
Diluted | ​ | $ | 0.30 | ​ | $ | 0.07 | ​ | $ | 0.07 | ​ | $ | 0.30
Weighted average number of common shares outstanding: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Basic | ​ |  | 267,546 | ​ |  | 267,311 | ​ |  | 267,727 | ​ |  | 270,107
Diluted | ​ |  | 269,208 | ​ |  | 268,890 | ​ |  | 268,861 | ​ |  | 270,755
| (a) | Due to the quarterly pro-rata calculation of noncontrolling interest and rounding, the sum of the quarterly per share and/or dollar amounts may not equal the annual totals.
United Dominion Realty L.P. |
Entity information |
UNAUDITED SUMMARIZED CONSOLIDATED QUARTERLY FINANCIAL DATA | 13. UNAUDITED SUMMARIZED CONSOLIDATED QUARTERLY FINANCIAL DATA Selected consolidated quarterly financial data for the years ended December 31, 2019 and 2018 is summarized in the table below (dollars in thousands, except per unit amounts):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ |  | March 31, |  | June 30, |  | September 30, |  | December 31,
2019 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Rental income | ​ | $ | 108,334 | ​ | $ | 110,350 | ​ | $ | 111,700 | ​ | $ | 111,389
Income/(loss) | ​ |  | 24,334 | ​ |  | 27,810 | ​ |  | 27,283 | ​ |  | 24,568
Income/(loss) attributable to OP unitholders | ​ |  | 23,946 | ​ |  | 27,394 | ​ |  | 26,835 | ​ |  | 23,988
Income/(loss) attributable to OP unitholders per weighted average OP Unit — basic and diluted (a) | ​ | $ | 0.13 | ​ | $ | 0.15 | ​ | $ | 0.15 | ​ | $ | 0.13
2018 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Rental income | ​ | $ | 106,592 | ​ | $ | 107,266 | ​ | $ | 109,539 | ​ | $ | 108,523
Income/(loss) | ​ |  | 91,845 | ​ |  | 25,181 | ​ |  | 28,135 | ​ |  | 86,324
Income/(loss) attributable to OP unitholders | ​ |  | 91,427 | ​ |  | 24,761 | ​ |  | 27,695 | ​ |  | 85,880
Income/(loss) attributable to OP unitholders per weighted average OP Unit — basic and diluted (a) | ​ | $ | 0.50 | ​ | $ | 0.13 | ​ | $ | 0.15 | ​ | $ | 0.47
(a) | Quarterly net income/(loss) per weighted average OP Unit amounts may not total to the annual amounts.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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