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Commitments and Contingencies - Narrative (Details)	3 Months Ended
Commitments and Contingencies - Narrative (Details)	Sep. 30, 2020 USD ($)	Oct. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Feb. 08, 2018 claim
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Number of putative class action complaints \| claim				2
Civil money penalty payment	$ 17,500,000
Purchase commitments, total	119,700,000
Affiliated
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase commitments, total	33,100,000
Chief Executive Officer
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Payment received from CEO for settlement	2,122,000
Standby Letters of Credit \| Bank of America 2018 Credit Agreement \| Bank of America \| Revolving Credit Facility
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Credit facility, maximum borrowing capacity		$ 6,400,000	$ 3,200,000
Letters of credit outstanding	$ 0