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Leases (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2019
Lessee, Lease, Description [Line Items] |  |  |  |
Amortization of right-of-use assets | $ 134 |  |  |
Interest on lease liabilities | 43 |  |  |
Operating lease cost | 16,640 |  |  |
Short-term lease cost | 470 |  |  |
Total lease cost | 17,287 |  |  |
Operating cash flows used for finance leases | 43 |  |  |
Operating cash flows used for operating leases | 16,714 |  |  |
Financing cash flows used for finance leases | 104 |  |  |
Right-of-use assets obtained in exchange for new finance lease liabilities | 55 |  |  |
Right of use assets upon adoption | 505 |  |  |
Right-of-use assets obtained in exchange for new operating lease liabilities | $ 7,251 |  |  |
Weighted average remaining lease term - finance leases | 3 years 7 months 6 days |  |  |
Weighted average discount rate - finance leases | 6.55% |  |  |
Weighted average remaining lease term - operating leases | 2 years 7 months 6 days |  |  |
Weighted average discount rate - operating leases | 5.50% |  |  |
2020 | $ 14,292 |  |  |
2020 | 151 |  |  |
2020 | 14,443 |  |  |
2021 | 10,005 |  |  |
2021 | 151 |  |  |
2021 | 10,156 |  |  |
2022 | 4,034 |  |  |
2022 | 136 |  |  |
2022 | 4,170 |  |  |
2023 | 1,394 |  |  |
2023 | 245 |  |  |
2023 | 1,639 |  |  |
2024 | 888 |  |  |
2024 | 0 |  |  |
2024 | 888 |  |  |
Total cash lease payments | 30,613 |  |  |
Total cash lease payments | 683 |  |  |
Total cash lease payments | 31,296 |  |  |
Less: amounts representing interest | (2,036) |  |  |
Less: amounts representing interest | (93) |  |  |
Less: amounts representing interest | (2,129) |  |  |
Total lease liabilities | 28,577 |  |  |
Total lease liabilities | 590 |  |  |
Total lease liabilities | 29,167 |  |  |
Expenses related to operating leases and rental agreements |  | $ 10,239 | $ 7,065 |
Accounting Standards Update 2016-02 |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Right of use assets upon adoption | $ 35,939 |  |  |
Total lease liabilities |  |  |  | $ 36,484
Assets Held under Capital Leases |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Assets under equipment leases, gross |  | 657 |  |
Assets under equipment leases, depreciation expense |  | $ 155 | $ 255 |

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