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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Summary of Change in Noncontrolling Interest (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | $ 644,657 |
Net (loss) income | (60,039) | $ 2,936
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | 0 | 0
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements | (74,774) | (13,306)
Reclassification of realized interest on swap agreements | 977 | (551)
Noncontrolling interest contributions | 7,268 | 32,191
Noncontrolling interest distributions | (3,118) | (3,237)
Employee Long-term Incentive Plan Unit Awards | 3,819 | 3,454
Reallocation of noncontrolling interests | 0 | 0
Ending Balance | 577,096 |
Noncontrolling Interests |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 644,657 | 622,442
Distributions declared of $0.29 and $0.28 per Common OP Unit for three months ended March 31, 2020 and 2019, respectively | (1,849) | (1,781)
Net (loss) income | (51,625) | (9,261)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | (2,472) | (2,953)
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements | (19,529) | (2,299)
Cumulative effect of change in accounting principle (Note 1) | (11) |
Reclassification of realized interest on swap agreements | 272 | (21)
Noncontrolling interest contributions | 7,268 | 32,191
Noncontrolling interest distributions | (3,118) | (3,237)
Employee Long-term Incentive Plan Unit Awards | 3,648 | 3,360
Reallocation of noncontrolling interests | (145) | 1,980
Ending Balance | 577,096 | 640,421
Noncontrolling Interests | Noncontrolling Interests in Partially-Owned Affiliates |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 546,987 | 518,219
Distributions declared of $0.29 and $0.28 per Common OP Unit for three months ended March 31, 2020 and 2019, respectively | 0 | 0
Net (loss) income | (51,289) | (10,192)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | 0 | 0
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements | (16,388) | (1,605)
Cumulative effect of change in accounting principle (Note 1) | (11) |
Reclassification of realized interest on swap agreements | 265 | 1
Noncontrolling interest contributions | 7,268 | 32,191
Noncontrolling interest distributions | (3,118) | (3,237)
Employee Long-term Incentive Plan Unit Awards | 0 | 0
Reallocation of noncontrolling interests | 0 | 0
Ending Balance | 483,714 | 535,377
Noncontrolling Interests | Operating Partnership, as General Partner or Managing Member |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning Balance | 97,670 | 104,223
Distributions declared of $0.29 and $0.28 per Common OP Unit for three months ended March 31, 2020 and 2019, respectively | (1,849) | (1,781)
Net (loss) income | (336) | 931
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership | (2,472) | (2,953)
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements | (3,141) | (694)
Reclassification of realized interest on swap agreements | 7 | (22)
Noncontrolling interest contributions | 0 | 0
Noncontrolling interest distributions | 0 | 0
Employee Long-term Incentive Plan Unit Awards | 3,648 | 3,360
Reallocation of noncontrolling interests | (145) | 1,980
Ending Balance | $ 93,382 | $ 105,044

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