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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Income - Noncontrolling Interest (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | $ 589,548 |  |
Net income attributable to noncontrolling interests | (4,340) | $ (44,950) |
Conversion of Common OP Units to Common Shares by limited partners of the Operating Partnership | 0 | 0 |
Issuance of OP Units to acquire real estate |  | 29,336 |
Acquisition of noncontrolling interests |  | (18,379) |
Other comprehensive income - unrealized loss on valuation of swap agreements | 118 | (8,819) |
Reclassification of realized interest on swap agreements | 963 | 1,046 |
Noncontrolling interest contributions | 20,269 | 46,343 |
Noncontrolling interest distributions and other reductions | (3,822) | (36,174) |
Employee Long-term Incentive Plan Unit Awards | 4,235 | 4,019 |
Balance | 617,959 |  | $ 589,548
Payments to noncontrolling interests | $ 6,163 | $ 56,995 |
Distributions declared (in dollars per share) | $ 0.26 | $ 0.25 | $ 0.25
Limited partners' capital account, units issued and converted (in shares) | 24,860 |  | 248,160
LTIP Units [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
LTIP units outstanding (in shares) | 2,265,852 | 1,979,882 |
Series A Preferred Stock [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Limited partners' capital account, units issued and converted (in shares) | 1,392 |  |
Series C Preferred Stock [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Series A Preferred OP Units (in shares) | 141,593 | 141,593 |
Fund II [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Additional ownership interest acquired |  | 8.30% |
Payments to noncontrolling interests |  | $ 18,400 |
Equity Interest Held By Operating Partnership (b) |  | 28.33% |
Operating Partnership, as General Partner or Managing Member [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Series A Preferred OP Units (in shares) | 3,363,351 | 3,357,760 |
Equity Interest Held By Operating Partnership (b) | 95.00% |  | 95.00%
Operating Partnership, as General Partner or Managing Member [Member] | Series A Preferred Stock [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Series A Preferred OP Units (in shares) | 188 | 188 |
Operating Partnership, as General Partner or Managing Member [Member] | Series C Preferred Stock [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Series A Preferred OP Units (in shares) | 141,593 | 141,593 |
Noncontrolling Interests |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | $ 589,548 | $ 420,866 | $ 420,866
Distributions declared | (1,617) | (1,473) |
Net income attributable to noncontrolling interests | 4,340 | 44,950 |
Conversion of Common OP Units to Common Shares by limited partners of the Operating Partnership | (438) | (5,680) |
Issuance of OP Units to acquire real estate |  | 29,336 |
Acquisition of noncontrolling interests |  | (25,948) |
Other comprehensive income - unrealized loss on valuation of swap agreements | (296) | (914) |
Reclassification of realized interest on swap agreements | 141 | 145 |
Noncontrolling interest contributions | 20,269 | 46,343 |
Noncontrolling interest distributions and other reductions | (3,822) | (36,174) |
Employee Long-term Incentive Plan Unit Awards | 4,141 | 3,811 |
Balance | 617,959 | 475,262 | 589,548
Noncontrolling Interests | Restatement Adjustment [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | 5,693 |  |
Noncontrolling Interests | Partially-Owned Affiliates [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | 494,126 | 324,526 | 324,526
Distributions declared | 0 | 0 |
Net income attributable to noncontrolling interests | 3,278 | 42,957 |
Conversion of Common OP Units to Common Shares by limited partners of the Operating Partnership | 0 | 0 |
Issuance of OP Units to acquire real estate |  | 0 |
Acquisition of noncontrolling interests |  | (25,948) |
Other comprehensive income - unrealized loss on valuation of swap agreements | (317) | (478) |
Reclassification of realized interest on swap agreements | 92 | 96 |
Noncontrolling interest contributions | 20,269 | 46,343 |
Noncontrolling interest distributions and other reductions | (3,822) | (36,174) |
Employee Long-term Incentive Plan Unit Awards | 0 | 0 |
Balance | 513,626 | 351,322 | 494,126
Noncontrolling Interests | Partially-Owned Affiliates [Member] | Restatement Adjustment [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | 0 |  |
Noncontrolling Interests | Operating Partnership, as General Partner or Managing Member [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | 95,422 | 96,340 | 96,340
Distributions declared | (1,617) | (1,473) |
Net income attributable to noncontrolling interests | 1,062 | 1,993 |
Conversion of Common OP Units to Common Shares by limited partners of the Operating Partnership | (438) | (5,680) |
Issuance of OP Units to acquire real estate |  | 29,336 |
Acquisition of noncontrolling interests |  | 0 |
Other comprehensive income - unrealized loss on valuation of swap agreements | 21 | (436) |
Reclassification of realized interest on swap agreements | 49 | 49 |
Noncontrolling interest contributions | 0 | 0 |
Noncontrolling interest distributions and other reductions | 0 | 0 |
Employee Long-term Incentive Plan Unit Awards | 4,141 | 3,811 |
Balance | 104,333 | $ 123,940 | $ 95,422
Noncontrolling Interests | Operating Partnership, as General Partner or Managing Member [Member] | Restatement Adjustment [Member] |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Balance | $ 5,693 |  |

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