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Condensed Consolidated Statements Of Equity (USD $) | Total | Common shares of beneficial interest | Additional paid-in capital | Distributions in excess of net income | Treasury shares, at cost | Accumulated other comprehensive loss | Non-controlling interests
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2012 | $ 2,626,708,000 | $ 962,000 | $ 3,587,505,000 | $ (598,951,000) | $ (425,355,000) | $ (1,062,000) | $ 63,609,000
Net income | 64,433,000 |  |  | 63,476,000 |  |  | 957,000
Other comprehensive income | 14,000 |  |  |  |  | 14,000 |
Common shares issued | 9,366,000 | 1,000 | 9,365,000 |  |  |  |
Net share awards | 4,741,000 |  | (7,198,000) |  | 11,939,000 |  |
Employee share purchase plan | 354,000 |  | 174,000 |  | 180,000 |  |
Common share options exercised | 960,000 |  | 367,000 |  | 593,000 |  |
Conversions of operating partnership units | 0 |  | 47,000 |  |  |  | (47,000)
Cash distributions declared to equity holders | (56,553,000) |  |  | (55,356,000) |  |  | (1,197,000)
Other | 0 | (1,000) | 1,000 |  |  |  |
Ending balance at Mar. 31, 2013 | 2,650,023,000 | 962,000 | 3,590,261,000 | (590,831,000) | (412,643,000) | (1,048,000) | 63,322,000
Beginning balance at Dec. 31, 2013 | 2,760,181,000 | 967,000 | 3,596,069,000 | (494,167,000) | (410,227,000) | (1,106,000) | 68,645,000
Net income | 41,073,000 |  |  | 40,036,000 |  |  | 1,037,000
Other comprehensive income | 15,000 |  |  |  |  | 15,000 |
Net share awards | 5,056,000 |  | (5,287,000) |  | 10,343,000 |  |
Employee share purchase plan | 498,000 |  | 168,000 |  | 330,000 |  |
Common share options exercised | 352,000 |  | 308,000 |  | 44,000 |  |
Change in classification of deferred compensation plan | 606,000 |  | 606,000 |  |  |  |
Change in redemption value of non-qualified share awards | (11,352,000) |  |  | (11,352,000) |  |  |
Diversification of share awards within deferred compensation plan | 2,428,000 |  | 1,770,000 | 658,000 |  |  |
Cash distributions declared to equity holders | (59,750,000) |  |  | (58,496,000) |  |  | (1,254,000)
Other | (2,000) | (1,000) | (1,000) |  |  |  |
Ending balance at Mar. 31, 2014 | $ 2,739,105,000 | $ 966,000 | $ 3,593,633,000 | $ (523,321,000) | $ (399,510,000) | $ (1,091,000) | $ 68,428,000

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