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Commitments and Contingencies (Other Commitments) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |  |  |
Operating lease expense | $ 4,400 | $ 5,000 | $ 5,200
Operating |  |  |
2020 | 4,167 |  |
2021 | 1,803 |  |
2022 | 1,098 |  |
2023 | 728 |  |
2024 | 617 |  |
Thereafter | 1,447 |  |
Total undiscounted cash flows | 9,860 |  |
Present value discount | (1,057) |  |
Other adjustments | 25,379 |  |
Lease liabilities | 34,182 |  |
Finance |  |  |
2020 | 5,386 |  |
2021 | 5,494 |  |
2022 | 5,604 |  |
2023 | 5,716 |  |
2024 | 5,830 |  |
Thereafter | 1,573,824 |  |
Total undiscounted cash flows | 1,601,854 |  |
Present value discount | (1,454,105) |  |
Other adjustments | 0 |  |
Lease liabilities | 147,749 |  |
Operating lease payments made | 4,100 |  |
Finance lease payments made | $ 3,300 |  |
Operating leases, excluding tenant paid leases, weighted average lease term (in years) | 4 years 2 months 12 days |  |
Operating leases, weighted average incremental borrowing rate, discount rate (percent) | 5.60% |  |
Finance leases, weighted average lease term (in years) | 93 years |  |
Finance leases, weighted average rate implicit in the lease, discount rate (percent) | 5.40% |  |
Operating |  |  |
2019 |  | 4,340 |
2020 |  | 4,016 |
2021 |  | 1,589 |
2022 |  | 991 |
2023 |  | 849 |
Thereafter |  | $ 2,469 |

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