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Leases (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating right-of-use assets $ 25,100 $ 28,178
Property, plant and equipment, net 469 505
Total right-of use assets 25,569 28,683
Operating lease liabilities, current and long-term portions 25,407 28,577
Long-term debt, current and long-term portions 558 590
Total lease liabilities $ 25,965 $ 29,167