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Sources and Uses of Cash Upon Emergence (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Apr. 01, 2017	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Sources:
Collateral arrangements	$ (66.4)	$ 288.3	$ 0.0	$ 323.1
Uses:
Securitization facility deferred financing costs	$ (45.4)	$ (10.8)	$ (6.4)	$ (21.2)

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- Definition

Fresh-Start Adjustment, Sources of Cash [Abstract]

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- Definition

Fresh-Start Adjustment, Uses of Cash [Abstract]

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- Definition

Proceeds from Release of Collateral

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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