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Intangible Assets and Below Market Leaes Liabilities | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets and Below Market Lease Liabilities | Intangible Assets and Below Market Lease Liabilities The following table sets forth total intangible assets and acquisition-related below market lease liabilities, net of accumulated amortization:
| December 31,
| 2017 |  | 2016
Assets: |  |  |
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets) | $ | 344,191 |  |  | $ | 353,581 |
Less accumulated amortization | (143,512 | ) |  | (140,081 | )
| $ | 200,679 |  |  | $ | 213,500 |
Liabilities (in accounts payable, accrued expenses and other liabilities): |  |  |
Acquisition-related below market lease liabilities | $ | 59,947 |  |  | $ | 61,221 |
Less accumulated amortization | (28,214 | ) |  | (23,074 | )
| $ | 31,733 |  |  | $ | 38,147 |
5. Intangible Assets and Below Market Lease Liabilities - Continued The following table sets forth amortization of intangible assets and below market lease liabilities:
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization) | $ | 41,187 |  |  | $ | 44,968 |  |  | $ | 43,332 |
Amortization of lease incentives (in rental and other revenues) | $ | 1,765 |  |  | $ | 1,779 |  |  | $ | 1,493 |
Amortization of acquisition-related intangible assets (in rental and other revenues) | $ | 2,921 |  |  | $ | 3,851 |  |  | $ | 5,062 |
Amortization of acquisition-related intangible assets (in rental property and other expenses) | $ | 557 |  |  | $ | 557 |  |  | $ | 557 |
Amortization of acquisition-related below market lease liabilities (in rental and other revenues) | $ | (6,415 | ) |  | $ | (8,183 | ) |  | $ | (7,065 | )
The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities:
Years Ending December 31, |  | Amortization of Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) |  | Amortization of Lease Incentives (in Rental and Other Revenues) |  | Amortization of Acquisition-Related Intangible Assets (in Rental and Other Revenues) |  | Amortization of Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) |  | Amortization of Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues)
2018 |  | $ | 36,566 |  |  | $ | 1,586 |  |  | $ | 1,659 |  |  | $ | 553 |  |  | $ | (5,911 | )
2019 |  | 31,032 |  |  | 1,434 |  |  | 1,275 |  |  | 553 |  |  | (5,454 | )
2020 |  | 26,614 |  |  | 1,171 |  |  | 959 |  |  | 518 |  |  | (5,193 | )
2021 |  | 22,262 |  |  | 948 |  |  | 632 |  |  | — |  |  | (4,383 | )
2022 |  | 18,098 |  |  | 734 |  |  | 462 |  |  | — |  |  | (3,269 | )
Thereafter |  | 48,182 |  |  | 4,033 |  |  | 1,408 |  |  | — |  |  | (7,523 | )
|  | $ | 182,754 |  |  | $ | 9,906 |  |  | $ | 6,395 |  |  | $ | 1,624 |  |  | $ | (31,733 | )
Weighted average remaining amortization periods as of December 31, 2017 (in years) |  | 7.6 |  |  | 9.9 |  |  | 6.5 |  |  | 3.0 |  |  | 6.6 |

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- References No definition available. + Details
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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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