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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Future Minimum Lease Payments Under Current Leases | The following table details the future minimum lease payments under the Company's current leases (dollars in thousands):
| Payments due by period
| 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | Thereafter
Operating Lease Obligations | $ | 14,166 |  |  | $ | 11,836 |  |  | $ | 13,226 |  |  | $ | 13,129 |  |  | $ | 12,527 |  |  | $ | 439,981 |
Capital Lease Obligations (1) (2) | 1,075 |  |  | 1,077 |  |  | 1,080 |  |  | 1,082 |  |  | 1,084 |  |  | 41,220 |
| $ | 15,241 |  |  | $ | 12,913 |  |  | $ | 14,306 |  |  | $ | 14,211 |  |  | $ | 13,611 |  |  | $ | 481,201 |
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(1) | Aggregate capital lease payments include $26,375 in interest costs, with the timing of certain lease payments for capital land leases determined by completion of the construction of the associated apartment community.
(2) | Capital lease assets of $19,737 as of both December 31, 2018 and 2017, respectively, are included as a component of land and improvements or building and improvements on the accompanying Consolidated Balance Sheets.

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