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Leases (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2019 | Jan. 01, 2019
Lessee, Lease, Description [Line Items] |  |  |  |
Operating Lease, Right-of-Use Asset | $ 39.9 |  | $ 64.2 | $ 57.0
Lessee, Lease Renewal Term | 25 years |  |  |
Lessee, Operating Lease, Renewal Term | 1 year |  |  |
Lessee, Finance Lease, Term of Contract | 4 years |  |  |
Payments made in connection with operating leases |  | $ 49.1 |  |
Fleet Lease |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Lessee, Operating Lease, Term of Contract | 1 year |  |  |
Minimum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Lessee, Operating Lease, Term of Contract | 1 year |  |  |
Minimum | Office Lease |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Remaining Lease Term | 1 year |  |  |
Maximum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Lessee, Operating Lease, Term of Contract | 2 years |  |  |
Maximum | Office Lease |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Remaining Lease Term | 23 years |  |  |

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- Definition Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121573735&loc=d3e41499-112717 + Details
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