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Leases - Land Lease Obligations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Lease costs |  |  |
Land lease expense | $ 1,242 | $ 645 | $ 653
Operating Lease Costs | (1,131) |  |
Total | (1,131) |  |
Right-of-use assets obtained in exchange for new operating lease liabilities | 19,672 |  |
Right-of-use assets removed in exchange for real property | (3,025) |  |
Right-of-use assets net change | 16,647 |  |
Operating cash outflows from operating leases | $ 1,073 |  |
Weighted average remaining lease term (in years) | 38 years 2 months 12 days |  |
Weighted-average discount rate - operating leases | 4.13% |  |
Maturity Analysis of Lease Liabilities |  |  |
Lease Payment 2020 | $ 1,069 |  |
Lease Payment 2021 | 1,015 |  |
Lease Payment 2022 | 789 |  |
Lease Payment 2023 | 789 |  |
Lease Payment 2024 | 789 |  |
Lease Payment Thereafter | 30,584 |  |
Lease Payments Total | 35,035 |  |
Imputed Interest 2020 | (662) |  |
Imputed Interest 2021 | (645) |  |
Imputed Interest 2022 | (634) |  |
Imputed Interest 2023 | (628) |  |
Imputed Interest 2024 | (621) |  |
Imputed Interest Thereafter | (15,634) |  |
Imputed Interest Total | (18,824) |  |
Total Lease Liabilities 2020 | 407 |  |
Total Lease Liabilities 2021 | 370 |  |
Total Lease Liabilities 2022 | 155 |  |
Total Lease Liabilities 2023 | 161 |  |
Total Lease Liabilities 2024 | 168 |  |
Total Lease Liabilities Thereafter | 14,950 |  |
Total Lease Liabilities | $ 16,211 |  |

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