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Consolidated Statement of Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands | Total | Preferred Stock | Common Stock | Additional Paid-In-Capital | Treasury Stock | Accumulated Other Comprehensive Income | Retained Earnings | Noncontrolling Interests | Series I Preferred Stock Preferred Stock
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Cumulative adjustment upon adoption of ASC 610-20 | Accounting Standards Update 2014-09 | $ 570,524 |  |  |  |  |  | $ 570,524 |  |
Beginning Balance at Dec. 31, 2017 | 6,589,454 |  | $ 939 | $ 4,968,338 | $ (124,049) | $ 18,604 | 1,139,329 | $ 364,361 | $ 221,932
Beginning Balance (in shares) at Dec. 31, 2017 |  |  | 92,803 |  |  |  |  |  |
Adjusted Balance at Dec. 31, 2017 | 7,159,978 |  | $ 939 | 4,968,338 | (124,049) | 18,604 | 1,709,853 | 364,361 | $ 221,932
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Net income | 213,168 |  |  |  |  |  | 212,797 | 371 |
Other comprehensive income | 14,018 |  |  |  |  | 14,018 |  |  |
Preferred dividends | (7,475) |  |  |  |  |  | (7,475) |  |
DRSPP proceeds (in shares) |  |  | 1 |  |  |  |  |  |
DRSPP proceeds | 64 |  |  | 64 |  |  |  |  |
Conversion of units of the Operating Partnership to common stock (in shares) |  |  | 15 |  |  |  |  |  |
Conversion of units in the Operating Partnership for common stock | 1,560 |  |  | 1,560 |  |  |  |  |
Reallocation of noncontrolling interest in the Operating Partnership | (4,493) |  |  |  |  |  | (4,493) |  |
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings (in shares) |  |  | (20) |  |  |  |  |  |
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings | 8,090 |  |  | 8,090 |  |  |  |  |
Repurchases of common stock (in shares) |  |  | (7,133) |  |  |  |  |  |
Repurchases of common stock | (693,091) |  | $ (72) | (382,080) |  |  | (310,939) |  |
Proceeds from stock options exercised (in shares) |  |  | 59 |  |  |  |  |  |
Proceeds from stock options exercised | 5,637 |  | $ 1 | 5,636 |  |  |  |  |
Contributions to consolidated joint venture interests | 1,828 |  |  |  |  |  |  | 1,828 |
Deconsolidation of partially owned entity | (314,596) |  |  |  |  |  |  | (314,596) |
Cash distributions to noncontrolling interests | (724) |  |  |  |  |  |  | (724) |
Cash distributions declared ($1.625 per common share, none of which represented a return of capital for federal income tax purposes) | (141,908) |  |  |  |  |  | (141,908) |  |
Ending Balance at Jun. 30, 2018 | $ 6,242,056 | $ 221,932 | $ 868 | $ 4,601,608 | $ (124,049) | $ 32,622 | $ 1,457,835 | $ 51,240 |
Ending Balance (in shares) at Jun. 30, 2018 |  |  | 85,725 |  |  |  |  |  |

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