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Summary of Significant Accounting Policies - Other Information (Details) - USD ($)
$ in Thousands
3 Months Ended
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