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Leases - Balance Sheet Location (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Operating leases |  |
Operating lease right of use assets | $ 18,275 | $ 13,274
Operating lease liability, current | 3,227 | 3,006
Operating lease liability, noncurrent | 15,048 | 10,268
Total operating lease liabilities | 18,275 | 13,274
Finance leases |  |
Property, plant, and equipment | 3,469 | 3,518
Accumulated amortization | (3,095) | (2,943)
Property, plant, and equipment - net | 374 | 575
Finance lease liability, current | 231 | 405
Finance lease liability, noncurrent | 143 | 170
Total finance lease liabilities | $ 374 | $ 575

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