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Revenue Recognition (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Minimum Lease Payments: |  |  |
2021 | $ 142,003 |  |
2022 | 124,714 |  |
2023 | 110,543 |  |
2024 | 95,002 |  |
2025 | 77,835 |  |
Thereafter | 263,438 |  |
Total | 813,535 |  |
Disaggregation of Revenue [Line Items] |  |  |
Receivables | 327 | $ 460 |
Property management fee |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Income | 2,093 | 2,421 | $ 2,626
Asset management fee |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Income | 1,098 | 1,074 | 1,080
Leasing commissions and other fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Income | 456 | 361 | 684
Other fee income |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Income | $ 3,647 | $ 3,856 | $ 4,390
Minimum |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Remaining lease term | 1 year |  |
Maximum |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Remaining lease term | 78 years |  |

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