Business Combinations, Goodwill and Intangible Assets - Components of Acquired Intangible Assets and Estimated Useful Lives (Details) $ in Millions	3 Months Ended
Mar. 31, 2021 USD ($)
Finite Lived Intangible Assets [Line Items]
Fair Value	$ 56.5
Favorable Lease Contract
Finite Lived Intangible Assets [Line Items]
Useful Life (in years)	120 years
Fair Value	$ 7.0
Favorable Commodity Contracts
Finite Lived Intangible Assets [Line Items]
Useful Life (in years)	2 years
Fair Value	$ 11.0
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Useful Life (in years)	12 years
Fair Value	$ 38.5

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472

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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.

+ References

No definition available.

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