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Debt Obligations - Aggregate Scheduled Principal Payments of Debt Obligation, Excluding Amortization of Discounts and Premiums (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt Instrument [Line Items] |  |
2020 (six months remaining) | $ 83,317 |
2021 | 15,143 |
2022 | 317,332 |
2023 | 556,736 |
2024 | 350,000 |
Thereafter | 878,610 |
Total principal payments | 2,201,138 |
Net unamortized premiums/(discounts) | 9,918 |
Net deferred financing costs | (9,301) |
Outstanding indebtedness | 2,201,755 |
Held for sale |  |
Debt Instrument [Line Items] |  |
2020 (six months remaining) | 3,000 |
2021 | 6,100 |
2022 | 6,300 |
2023 | 206,700 |
Net unamortized premiums/(discounts) | (1,200) |
Net deferred financing costs | (200) |
Outstanding indebtedness | 220,720 |
Held for use |  |
Debt Instrument [Line Items] |  |
Outstanding indebtedness | $ 1,981,035 | $ 2,144,418

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