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Supplemental Financial Information - Supplemental Income Statement, Interest Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Interest on Senior Term Loan $ 630 $ 1,270
Debt discount and debt issuance costs 354 381
453A interest 132 322
Other 94 131
Interest expense $ 1,210 $ 2,104