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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Shares | Additional Paid-in Capital | Accumulated Other Comprehensive (Loss) Income | (Distributions in Excess of Accumulated Earnings) Retained Earnings | Total Common Shareholders’ Equity | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2014 | $ 1,435,957 | $ 68 | $ 1,027,861 | $ (4,005) | $ 31,617 | $ 1,055,541 | $ 380,416
Balance (in Shares) at Dec. 31, 2014 |  | 68,109,000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | 0 |  | 2,451 |  |  | 2,451 | (2,451)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares) |  | 101,000 |  |  |  |  |
Issuance of Common Shares, net of issuance costs | 64,417 | $ 2 | 64,415 |  |  | 64,417 |
Issuance of Common Shares, net of issuance costs (in Shares) |  | 1,973,000 |  |  |  |  |
Dividends declared ($1.05, $1.16 and $1.22 per Common Share/OP Unit for Year Ended December 31, 2017, 2016 and 2015 respectively) | (90,666) |  |  |  | (84,683) | (84,683) | (5,983)
Acquisition of noncontrolling interests | (7,970) |  | (4,409) |  |  | (4,409) | (3,561)
Employee and trustee stock compensation, net | 8,644 |  | 1,921 |  |  | 1,921 | 6,723
Employee and trustee stock compensation, net (in Shares) |  | 75,000 |  |  |  |  |
Noncontrolling interest distributions | (74,950) |  |  |  |  |  | (74,950)
Noncontrolling interest contributions | 35,489 |  |  |  |  |  | 35,489
Comprehensive income | 150,433 |  |  | (458) | 65,708 | 65,250 | 85,183
Ending Balance at Dec. 31, 2015 | 1,521,354 | $ 70 | 1,092,239 | (4,463) | 12,642 | 1,100,488 | 420,866
Balance (in Shares) at Dec. 31, 2015 |  | 70,258,000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | 0 | $ 1 | 7,891 |  |  | 7,892 | (7,892)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares) |  | 351,000 |  |  |  |  |
Issuance of Common Shares, net of issuance costs | 450,130 | $ 13 | 450,117 |  |  | 450,130 |
Issuance of Common Shares, net of issuance costs (in Shares) |  | 12,961,000 |  |  |  |  |
Issuance of OP Units to acquire real estate | 31,429 |  |  |  |  |  | 31,429
Dividends declared ($1.05, $1.16 and $1.22 per Common Share/OP Unit for Year Ended December 31, 2017, 2016 and 2015 respectively) | (97,806) |  |  |  | (91,053) | (91,053) | (6,753)
Acquisition of noncontrolling interests | (18,379) |  | 7,546 |  |  | 7,546 | (25,925)
Employee and trustee stock compensation, net | 13,694 |  | 926 |  |  | 926 | 12,768
Employee and trustee stock compensation, net (in Shares) |  | 28,000 |  |  |  |  |
Change in control of previously unconsolidated investment | (75,713) |  |  |  |  |  | (75,713)
Windfall tax benefit | 555 |  | 555 |  |  | 555 |
Noncontrolling interest distributions | (80,769) |  |  |  |  |  | (80,769)
Noncontrolling interest contributions | 295,108 |  |  |  |  |  | 295,108
Reallocation of noncontrolling interests | 0 |  | 35,652 |  |  | 35,652 | (35,652)
Comprehensive income | 138,522 |  |  | 3,665 | 72,776 | 76,441 | 62,081
Ending Balance at Dec. 31, 2016 | $ 2,178,125 | $ 84 | 1,594,926 | (798) | (5,635) | 1,588,577 | 589,548
Balance (in Shares) at Dec. 31, 2016 | 83,597,741 | 83,598,000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | $ 0 |  | 1,541 |  |  | 1,541 | (1,541)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares) |  | 87,000 |  |  |  |  |
Dividends declared ($1.05, $1.16 and $1.22 per Common Share/OP Unit for Year Ended December 31, 2017, 2016 and 2015 respectively) | (94,301) |  |  |  | (87,848) | (87,848) | (6,453)
Employee and trustee stock compensation, net | 11,155 |  | 698 |  |  | 698 | 10,457
Employee and trustee stock compensation, net (in Shares) |  | 23,000 |  |  |  |  |
Noncontrolling interest distributions | (32,805) |  |  |  |  |  | (32,805)
Noncontrolling interest contributions | 85,206 |  |  |  |  |  | 85,206
Reallocation of noncontrolling interests | 0 |  | (651) |  |  | (651) | 651
Comprehensive income | 68,259 |  |  | 3,412 | 61,470 | 64,882 | 3,377
Ending Balance at Dec. 31, 2017 | $ 2,215,639 | $ 84 | $ 1,596,514 | $ 2,614 | $ (32,013) | $ 1,567,199 | $ 648,440
Balance (in Shares) at Dec. 31, 2017 | 83,708,140 | 83,708,000 |  |  |  |  |

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