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Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-In Capital [Member] | Distributions in Excess of Accumulated Earnings [Member] | Accumulated Other Comprehensive Loss, Net | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2016 | $ 6,292,237 | $ 6 | $ 7,029,679 | $ (805,409) | $ (32,098) | $ 100,059
Balances (in shares) at Dec. 31, 2016 |  | 65,528 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 458,043 |  |  | 433,059 |  | 24,984
Reversal of unrealized gains upon the sale of marketable securities | (1,909) |  |  |  | (1,846) | (63)
Change in fair value of derivatives and amortization of swap settlements before guidance | 12,744 |  |  |  | 12,322 | 422
Cash flow hedge losses reclassified to earnings | 0 |  |  |  |  |
Change in fair value of marketable securities, net | 3,284 |  |  |  | 3,176 | 108
Issuance of common stock under: |  |  |  |  |  |
Stock option and restricted stock plans, net | 26,635 |  | 26,635 |  |  |
Stock option and restricted stock plans, net (in shares) |  | 179 |  |  |  |
Sale of common stock, net | 89,055 | $ 1 | 89,054 |  |  |
Sale of common stock, net (in shares) |  | 345 |  |  |  |
Equity based compensation costs | 11,302 |  | 9,529 |  |  | 1,773
Changes in the redemption value of redeemable noncontrolling interest | (65) |  | (136) |  |  | 71
Changes in noncontrolling interest from acquisition | 22,506 |  |  |  |  | 22,506
Distributions to noncontrolling interest | (27,051) |  |  |  |  | (27,051)
Redemptions of noncontrolling interest | (28,580) |  | (25,190) |  |  | (3,390)
Redemptions of noncontrolling interest (in shares) |  | 2 |  |  |  |
Common stock dividends | (461,376) |  |  | (461,376) |  |
Balances at Dec. 31, 2017 | 6,396,825 | $ 7 | 7,129,571 | (833,726) | (18,446) | 119,419
Balances (in shares) at Dec. 31, 2017 |  | 66,054 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 413,599 |  |  | 390,153 |  | 23,446
Reversal of unrealized gains upon the sale of marketable securities | 13 |  |  |  | 13 | 0
Change in fair value of derivatives and amortization of swap settlements before guidance | 7,824 |  |  |  | 7,564 | 260
Cash flow hedge losses reclassified to earnings | 0 |  |  |  |  |
Change in fair value of marketable securities, net | (118) |  |  |  | (114) | (4)
Issuance of common stock under: |  |  |  |  |  |
Stock option and restricted stock plans, net | 6,213 |  | 6,213 |  |  |
Stock option and restricted stock plans, net (in shares) |  | 41 |  |  |  |
Sale of common stock, net | (919) | $ 0 | (919) |  |  |
Sale of common stock, net (in shares) |  | 0 |  |  |  |
Equity based compensation costs | 12,851 |  | 11,651 |  |  | 1,200
Retirement of common stock, net | (51,233) |  | (51,233) |  |  |
Retirement of common stock, net (in shares) |  | (210) |  |  |  |
Changes in the redemption value of redeemable noncontrolling interest | (1,164) |  | (1,143) |  |  | (21)
Changes in noncontrolling interest from acquisition | 7,919 |  |  |  |  | 7,919
Distributions to noncontrolling interest | (29,233) |  |  |  |  | (29,233)
Redemptions of noncontrolling interest | (1,333) |  | (1,061) |  |  | (272)
Redemptions of noncontrolling interest (in shares) |  | 5 |  |  |  |
Common stock dividends | (491,108) |  |  | (491,108) |  |
Balances at Dec. 31, 2018 | 6,393,844 | $ 7 | 7,093,079 | (812,796) | (13,217) | 126,771
Balances (in shares) at Dec. 31, 2018 |  | 65,890 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 464,448 |  |  | 439,286 |  | 25,162
Reversal of unrealized gains upon the sale of marketable securities | (32) |  |  |  | (31) | (1)
Cash flow hedge losses reclassified to earnings | 1,824 |  |  |  | 1,762 | 62
Change in fair value of derivatives and amortization of swap settlements | (2,948) |  |  |  | (2,849) | (99)
Change in fair value of marketable securities, net | 281 |  |  |  | 272 | 9
Issuance of common stock under: |  |  |  |  |  |
Stock option and restricted stock plans, net | 33,779 |  | 33,779 |  |  |
Stock option and restricted stock plans, net (in shares) |  | 195 |  |  |  |
Sale of common stock, net | 72,539 |  | 72,539 |  |  |
Sale of common stock, net (in shares) |  | 228 |  |  |  |
Equity based compensation costs | 12,283 |  | 11,029 |  |  | 1,254
Retirement of common stock, net | (56,989) |  | (56,989) |  |  |
Retirement of common stock, net (in shares) |  | (234) |  |  |  |
Changes in the redemption value of redeemable noncontrolling interest | (2,008) |  | (3,427) |  |  | 1,419
Changes in noncontrolling interest from acquisition | 65,472 |  |  |  |  | 65,472
Distributions to noncontrolling interest | (28,493) |  |  |  |  | (28,493)
Redemptions of noncontrolling interest | (36,568) |  | (28,083) |  |  | (8,485)
Redemptions of noncontrolling interest (in shares) |  | 13 |  |  |  |
Common stock dividends | (514,109) |  |  | (514,109) |  |
Balances at Dec. 31, 2019 | $ 6,403,504 | $ 7 | $ 7,121,927 | $ (887,619) | $ (13,888) | $ 183,077
Balances (in shares) at Dec. 31, 2019 |  | 66,092 |  |  |  |

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