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Long-Term Debt, Net, and Other Borrowings - Maturities of Principal Obligations (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]    
Remainder of 2019 $ 5,000  
2020 10,000  
2021 10,000  
2022 11,250  
2023 15,000  
2024 148,750  
Total principal outstanding 200,000  
Unamortized debt discount (539)  
Unamortized debt issuance costs (859)  
Finance lease liabilities 240  
Total 198,842  
Less: current portion (10,136) $ (2,750)
Total long-term debt, net and other borrowings $ 188,706 $ 263,709
Interest rate under long-term debt 4.20%