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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Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Long-Term Debt - Waiver and Thirteenth Amendement (Details) - USD ($) $ in Millions	Jul. 02, 2020	Jul. 01, 2020	Jun. 11, 2020	Mar. 31, 2020
Senior Secured Credit Facility
Debt Instrument [Line Items]
Debt instrument expanded borrowing base	$ 225	$ 286	$ 286	$ 290