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Commitments and Contingencies Commitments and Contingencies (Purchase Obligations) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
bbl
Commitments and Contingencies Disclosure [Abstract]  
2020 $ 170.8
2021 30.0
2022 30.2
2023 21.0
2024 21.1
Thereafter 42.0
Total $ 315.1
Throughput Contract Commitment | bbl 5,000
Product Liability Contingency, Third Party Recovery, Percentage 2.00%
2020 $ 2.6 [1]
2021 3.9 [1]
2022 3.9 [1]
2023 3.9 [1]
2024 4.0 [1]
Thereafter 9.4 [1]
Total $ 27.7 [1]
[1] As of December 31, 2019, the estimated minimum payments for the unconditional purchase commitments have been accrued and are included in other current liabilities and other long-term liabilities in the consolidated balance sheets.