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Long-Term Debt - Narrative (Details) - USD ($)			15 Months Ended
	Jul. 01, 2021	Jul. 31, 2018	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2020	May 01, 2020	Dec. 23, 2016
Debt Instrument [Line Items]
Aggregate principal amount of loan				$ 226,700,000	$ 226,700,000
Net long-term debt				224,600,000	$ 224,400,000
Revolving credit facility
Debt Instrument [Line Items]
Maximum aggregate principal commitment							$ 300,000,000.0
Revolving credit facility | Amended Facility
Debt Instrument [Line Items]
Maturity date		Jul. 31, 2023
Maximum aggregate principal commitment		$ 350,000,000.0
Aggregate principal amount of loan		300,000,000.0
Upfront fees		1,800,000				$ 1,000,000.0
Debt issuance costs		$ 300,000
Net long-term debt				224,600,000
Scheduled principal payments prior to maturity date				$ 0
Interest rate (percent)				4.50%
Revolving credit facility | Amended Facility | Forecast
Debt Instrument [Line Items]
Undrawn fee (percent)			0.50%
LIBOR floor (percent)			1.00%
Revolving credit facility | Amended Facility | Forecast | Minimum
Debt Instrument [Line Items]
Undrawn fee (percent)	0.25%
Revolving credit facility | Amended Facility | Forecast | Maximum
Debt Instrument [Line Items]
Undrawn fee (percent)	0.45%
Revolving credit facility | Amended Facility | LIBOR | Forecast
Debt Instrument [Line Items]
Basis spread on rate (percent)	2.00%		3.50%

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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 the fee that accompanies borrowing money under the debt instrument.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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

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