Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Debt Instrument [Line Items]
Total loans	$ 78,750
Less unamortized issuance costs	(2,301)
Long-term Debt, Current Maturities	(1,972)	$ 0
Total long-term debt, net of current portion	74,477
Revolving loan
Debt Instrument [Line Items]
Total loans	30,000
Term loan
Debt Instrument [Line Items]
Total loans	$ 48,750

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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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