CARES Act, NOL Carryback Provision, Cash Benefits, Fiscal Year before Current Fiscal Year

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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The amount of cash received during the period as refunds for the overpayment of taxes.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Summary of Significant Accounting Policies - Income Taxes, Inventory and Property and Equipment (Details) - USD ($) $ in Millions	1 Months Ended		6 Months Ended
	Apr. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accounting Policies [Abstract]
Income tax cash refunds	$ 3.7	$ 2.7
CARES Act, cash benefits for the fiscal year 2020			$ 6.8
Inventory write-down				$ 24.2
Minimum
Property, Plant and Equipment [Abstract]
Property and equipment, useful life			2 years
Maximum
Property, Plant and Equipment [Abstract]
Property and equipment, useful life			39 years