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Goodwill and Intangible Assets (Intangible Assets Subject to Amortization) (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Cost |  |
Total intangible assets subject to amortization | $ 30.5 | $ 30.5
Intangible assets not subject to amortization, indefinite lives: | 115.4 | 115.6
Intangible assets, net of amortization | 145.9 | 146.1
Net |  |
Total intangible assets subject to amortization | 24.5 | 24.8
Intangible assets not subject to amortization, indefinite lives: | 115.4 | 115.6
Intangible assets, net of amortization | 139.9 | 140.4
Trade name |  |
Cost |  |
Intangible assets not subject to amortization, indefinite lives: | 115.4 | 115.4
Net |  |
Intangible assets not subject to amortization, indefinite lives: | 115.4 | 115.4
Liquor licenses |  |
Cost |  |
Intangible assets not subject to amortization, indefinite lives: | 0.0 | 0.2
Net |  |
Intangible assets not subject to amortization, indefinite lives: | $ 0.0 | 0.2
Pipeline space |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Remaining Useful Life (in years) | 31 years 10 months 24 days |
Cost |  |
Pipeline space | $ 39.6 | 39.6
Net |  |
Pipeline space | $ 31.9 | 32.7
Intangible lease liability |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Remaining Useful Life (in years) | 10 years 8 months 12 days |
Cost |  |
Intangible lease liability | $ (9.1) | (9.1)
Net |  |
Intangible lease liability | $ (7.4) | $ (7.9)

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