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Condensed Consolidated Statement of Equity - 9 months ended Sep. 30, 2016 - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Distributions in Excess of Accumulated Earnings [Member] | Accumulated Other Comprehensive Loss, Net [Member] | Noncontrolling Interest [Member] | Series H Preferred Stock [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at period beginning at Dec. 31, 2015 | $ 6,337,023 | $ 6 | $ 7,003,317 | $ (797,329) | $ (42,011) | $ 99,290 | $ 73,750
Balances (in shares) at Dec. 31, 2015 |  | 65,379 |  |  |  |  | 2,950
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 233,893 |  |  | 219,410 |  | 14,483 |
Change in fair value of derivatives and amortization of swap settlements | 3,481 |  |  |  | 3,367 | 114 |
Change in fair value of marketable securities, net | (1,500) |  |  |  | (1,451) | (49) |
Issuance of common stock under: |  |  |  |  |  |  |
Stock option and restricted stock plans, net | 17,878 |  | 17,878 |  |  |  |
Stock option and restricted stock plans, net (in shares) |  | 130 |  |  |  |  |
Sale of common stock, net | (382) |  | (382) |  |  |  |
Equity based compensation costs | 4,436 |  | 2,662 |  |  | 1,774 |
Redemption of Series H preferred stock | (73,750) |  | 2,541 | (2,541) |  |  | $ (73,750)
Redemption of Series H preferred stock (in shares) |  |  |  |  |  |  | (2,950)
Changes in the redemption value of redeemable noncontrolling interest | 1,343 |  | 785 |  |  | 558 |
Distributions to noncontrolling interest | (20,425) |  |  |  |  | (20,425) |
Redemptions of noncontrolling interest | (2,435) |  | (1,974) |  |  | (461) |
Redemptions of noncontrolling interest (in shares) |  | 14 |  |  |  |  |
Common and preferred stock dividends | (315,660) |  |  | (315,660) |  |  |
Balance at period end at Sep. 30, 2016 | $ 6,183,902 | $ 6 | $ 7,024,827 | $ (896,120) | $ (40,095) | $ 95,284 | $ 0
Balances (in shares) at Sep. 30, 2016 |  | 65,523 |  |  |  |  | 0

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