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CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands | Total | Total Stockholders' Equity | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Loss | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2016 |  |  | 143,985,036 |  |  |  |
Balance at Dec. 31, 2016 | $ 4,427,168 | $ 4,105,887 | $ 1,440 | $ 4,593,229 | $ (488,782) | $ 0 | $ 321,281
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income | 161,673 | 146,130 |  |  | 146,130 |  | 15,543
Interest rate cap/swap agreements | (42) |  |  |  |  |  |
Interest rate cap/swap agreements | (42) | (42) |  |  |  | (42) |
Amortization of share and unit-based plans (in shares) |  |  | 97,694 |  |  |  |
Amortization of share and unit-based plans | 37,005 | 37,005 | $ 1 | 37,004 |  |  |
Employee stock purchases (in shares) |  |  | 38,832 |  |  |  |
Employee stock purchases | 1,868 | 1,868 |  | 1,868 |  |  |
Stock repurchase (in shares) |  |  | (3,627,390) |  |  |  |
Stock repurchases | (221,428) | (221,428) | $ (36) | (135,176) | (86,216) |  |
Distributions | (407,895) | (407,895) |  |  | (407,895) |  |
Distributions to noncontrolling interests | (35,944) |  |  |  |  |  | (35,944)
Contributions from noncontrolling interests | 30 |  |  |  |  |  | 30
Conversion of noncontrolling interests to common shares (in shares) |  |  | 499,813 |  |  |  |
Conversion of noncontrolling interests to common shares | 0 | 16,797 | $ 5 | 16,792 |  |  | (16,797)
Redemption of noncontrolling interests | (920) | (615) |  | (615) |  |  | (305)
Adjustment of noncontrolling interests in Operating Partnership | 0 | (2,613) |  | (2,613) |  |  | 2,613
Balance (in shares) at Dec. 31, 2017 |  |  | 140,993,985 |  |  |  |
Balance at Dec. 31, 2017 | 3,967,999 | 3,681,578 | $ 1,410 | 4,510,489 | (830,279) | (42) | 286,421
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income | 68,972 | 60,020 |  |  | 60,020 |  | 8,952
Interest rate cap/swap agreements | (4,424) | (4,424) |  |  |  | (4,424) |
Amortization of share and unit-based plans (in shares) |  |  | 125,723 |  |  |  |
Amortization of share and unit-based plans | 33,551 | 33,551 | $ 1 | 33,550 |  |  |
Employee stock purchases (in shares) |  |  | 35,293 |  |  |  |
Employee stock purchases | 1,570 | 1,570 |  | 1,570 |  |  |
Distributions | (419,239) | (419,239) |  |  | (419,239) |  |
Distributions to noncontrolling interests | (34,395) |  |  |  |  |  | (34,395)
Contributions from noncontrolling interests | 16 |  |  |  |  |  | 16
Conversion of noncontrolling interests to common shares (in shares) |  |  | 66,711 |  |  |  |
Conversion of noncontrolling interests to common shares | 0 | 75 | $ 1 | 74 |  |  | (75)
Redemption of noncontrolling interests | (759) | (511) |  | (511) |  |  | (248)
Adjustment of noncontrolling interests in Operating Partnership | 0 | 22,471 |  | 22,471 |  |  | (22,471)
Balance (in shares) at Dec. 31, 2018 |  |  | 141,221,712 |  |  |  |
Balance at Dec. 31, 2018 | 3,188,432 | 2,950,232 | $ 1,412 | 4,567,643 | (1,614,357) | (4,466) | 238,200
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income | 102,554 | 96,820 |  |  | 96,820 |  | 5,734
Interest rate cap/swap agreements | (4,585) | (4,585) |  |  |  | (4,585) |
Amortization of share and unit-based plans (in shares) |  |  | 106,747 |  |  |  |
Amortization of share and unit-based plans | 16,723 | 16,723 | $ 1 | 16,722 |  |  |
Employee stock purchases (in shares) |  |  | 58,191 |  |  |  |
Employee stock purchases | 1,519 | 1,519 | $ 1 | 1,518 |  |  |
Distributions | (424,272) | (424,272) |  |  | (424,272) |  |
Distributions to noncontrolling interests | (50,262) |  |  |  |  |  | (50,262)
Contributions from noncontrolling interests | 3,131 |  |  |  |  |  | 3,131
Conversion of noncontrolling interests to common shares (in shares) |  |  | 21,000 |  |  |  |
Conversion of noncontrolling interests to common shares | 0 | 1,005 |  | 1,005 |  |  | (1,005)
Redemption of noncontrolling interests | (67) | (31) |  | (31) |  |  | (36)
Adjustment of noncontrolling interests in Operating Partnership | $ 0 | (2,946) |  | (2,946) |  |  | 2,946
Balance (in shares) at Dec. 31, 2019 | 141,407,650 |  | 141,407,650 |  |  |  |
Balance at Dec. 31, 2019 | $ 2,830,970 | $ 2,632,262 | $ 1,414 | $ 4,583,911 | $ (1,944,012) | $ (9,051) | $ 198,708

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