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Summary of Significant Accounting Policies - Other Information (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Accounting Policies [Abstract] |  |
Right-of-use assets obtained in exchange for new lease liabilities: Finance leases | $ 6,728 | $ 9,983
Right-of-use assets obtained in exchange for new lease liabilities: Operating leases | $ (27,226) | $ 10,711

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