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Debt and Financing Obligations (Financing Obligation) (Details) - Integral Equipment and Mobile Equipment - Domestic Coke and Coal Logistics	12 Months Ended
	Dec. 31, 2020
Sale Leaseback Transaction [Line Items]
Initial lease period	48 months
Buyout option period	36 months

X

- Definition

Sale Leaseback Transaction, Lease Term

+ References

No definition available.

+ Details

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X

- Definition

Sale Leaseback Transaction, Lease Term Before Early Buyout Option

+ References

No definition available.

+ Details

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X

- 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.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Details

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X

- Details

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