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Long-Term Debt and Finance Lease Obligations - Debt Instrument Redemption (Details) - 6.125% Senior Secured Notes, due June 2028	9 Months Ended
	Sep. 30, 2021
2024
Debt Instrument, Redemption [Line Items]
Redemption of notes, percentage of par value at which notes were repurchased	103.063%
2025
Debt Instrument, Redemption [Line Items]
Redemption of notes, percentage of par value at which notes were repurchased	101.531%
2026 and thereafter
Debt Instrument, Redemption [Line Items]
Redemption of notes, percentage of par value at which notes were repurchased	100.00%

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- Definition

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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No definition available.

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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