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CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Thousands | Total | Total Stockholders' Equity | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Cumulative effect of adoption of ASU 2016-09 | $ 6,484 | $ 6,484 |  |  | $ 6,484 |
Balance (in shares) at Dec. 31, 2016 | 143,985,036 |  | 143,985,036 |  |  |
Balance at Dec. 31, 2016 | $ 4,427,168 | 4,105,887 | $ 1,440 | $ 4,593,229 | (488,782) | $ 321,281
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income | 103,861 | 95,881 |  |  | 95,881 | 7,980
Amortization of share and unit-based plans (in shares) |  |  | 84,287 |  |  |
Amortization of share and unit-based plans | 23,947 | 23,947 | $ 1 | 23,946 |  |
Employee stock purchases (in shares) |  |  | 20,443 |  |  |
Employee stock purchases | 986 | 986 |  | 986 |  |
Stock repurchases (in shares) |  |  | (2,885,373) |  |  |
Stock repurchases | (181,740) | (181,740) | $ (29) | (107,425) | (74,286) |
Distributions declared ($1.42) per share | (203,102) | (203,102) |  |  | (203,102) |
Distributions to noncontrolling interests | (16,844) |  |  |  |  | (16,844)
Conversion of noncontrolling interests to common shares (in shares) |  |  | 352,017 |  |  |
Conversion of noncontrolling interests to common shares |  | 11,796 | $ 4 | 11,792 |  | (11,796)
Redemption of noncontrolling interests | $ (85) | (61) |  | (61) |  | (24)
Adjustment of noncontrolling interests in Operating Partnership |  | (522) |  | (522) |  | 522
Balance (in shares) at Jun. 30, 2017 | 141,556,410 |  | 141,556,410 |  |  |
Balance at Jun. 30, 2017 | $ 4,160,675 | $ 3,859,556 | $ 1,416 | $ 4,521,945 | $ (663,805) | $ 301,119

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