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Debt - Long-Term Debt, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Total current portion of long-term debt $ 829 $ 860
Total long-term debt, net of current portion 47,893 0
Capital leases    
Debt Instrument [Line Items]    
Total current portion of long-term debt 90 572
Total long-term debt, net of current portion 547 0
Notes payable    
Debt Instrument [Line Items]    
Total current portion of long-term debt 739 288
Total long-term debt, net of current portion 3,091 0
Credit Facility    
Debt Instrument [Line Items]    
Total current portion of long-term debt 0  
Total long-term debt, net of current portion $ 44,255 $ 0