Term Loan - Schedule of Future Principal Payments for Term A Loan (Details) - Term Loan A $ in Thousands	Sep. 30, 2018 USD ($)
Debt Instrument [Line Items]
2018
2019
2020	15,555
2021	26,667
2022	26,667
2023	11,111
Term Loan	$ 80,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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