Number Of Crude Oil Releases

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion.

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Increase (decrease) in the accrual for environmental loss contingencies during the reporting period.

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Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred.

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Commitments and Contingencies - Crude Oil Releases (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($) oil_releases	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) oil_releases	Sep. 30, 2019 USD ($)
Loss Contingencies [Line Items]
Number Of Crude Oil Releases \| oil_releases		5		0
Accrual for environmental loss contingencies, period increase (decrease)					$ 0.3
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses	$ 0.1	$ 7.1		$ 0.4
Operating Expense [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	0.3			0.3
Delek US \| Omnibus Agreement \| Delek US and affiliates
Loss Contingencies [Line Items]
Reimbursement for costs incurred for asset failures			$ 0.5		4.6
Delek US \| Omnibus Agreement \| Operating Expense [Member] \| Delek US and affiliates
Loss Contingencies [Line Items]
Reimbursement for costs incurred for asset failures	$ 0.0		$ 0.3	$ 0.1	$ 6.0