Debt - Narrative (Details) - USD ($)		3 Months Ended
	Jul. 10, 2020	Sep. 30, 2020	Sep. 30, 2019	May 14, 2020	May 13, 2020
Line Of Credit Facility [Line Items]
Amortization of financing fees		$ 2,466,000	$ 54,000
DIP DDTL Agreement
Line Of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25,000,000
Revolving credit facility outstanding amount		$ 0
Line of credit facility, interest rate	5.00%
Line of credit facility, Increase in interest rate an event default	2.00%
Debt instrument, maturity date	Apr. 10, 2021
DIP DDTL Agreement | LIBOR
Line Of Credit Facility [Line Items]
Debt instrument, description of variable rate basis	3-month LIBOR
Debt instrument, basis spread on variable rate	1.00%
Minimum | DIP DDTL Agreement
Line Of Credit Facility [Line Items]
Entitled to make borrowings under term facility by increments	$ 2,500,000
Pre-Petition ABL Credit Agreement
Line Of Credit Facility [Line Items]
Term of credit facility (in years)		5 years
Maximum borrowing capacity		$ 180,000,000.0		$ 130,000,000	$ 180,000,000
Revolving credit facility maturity date		Jan. 29, 2024
Loan repayment requirement		$ 10,000,000
Unencumbered cash balances in excess		32,000,000
Revolving credit facility outstanding amount		100,000	57,900,000
Availability under the credit facility		0	65,300,000
Outstanding letters of credit			8,900,000
Interest expense			700,000
Interest expense, debt			500,000
Amortization of financing fees			100,000
Commitment fees			$ 100,000
DIP ABL Facility
Line Of Credit Facility [Line Items]
Revolving credit facility outstanding amount		0
Availability under the credit facility		27,000,000.0
Outstanding letters of credit		$ 8,800,000
DIP ABL Facility | Maximum
Line Of Credit Facility [Line Items]
Maturity period		180 days
DIP ABL Credit Agreement and DIP Term Facility
Line Of Credit Facility [Line Items]
Interest expense		$ 2,800,000
Amortization of financing fees		2,600,000
Commitment fees		$ 200,000