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Summary of Significant Accounting Policies - Recent Accounting Guidance (Details) - USD ($)
$ in Thousands
Jan. 01, 2019
Dec. 31, 2019
Dec. 31, 2018
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment, net   $ 25,328 $ 41,149
Operating lease assets   5,849  
Operating Lease, Liability   $ 5,697  
ASU 2016-02 | Adjustment      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment, net $ (22,100)    
Operating lease assets 6,100    
Operating Lease, Liability (6,100)    
Prepaid transaction cost (800)    
Sale leaseback, increase in finance lease liability $ 800