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Investment in and Advances to Unconsolidated Affiliates (Tables) | 6 Months Ended
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Jun. 30, 2018
Investments in and Advances to Affiliates, Schedule of Investments [Abstract] |
Affiliate Balance Sheet [Table Text Block] |
(in millions) | June 30, 2018 |  | December 31, 2017
Assets |  |  |
Current assets | $ | 71.1 |  |  | $ | 64.5 |
Property and equipment, net | 231.0 |  |  | 234.6 |
Other assets, net | 241.0 |  |  | 236.5 |
Total assets | $ | 543.1 |  |  | $ | 535.6 |
Liabilities and Members' Equity |  |  |
Current liabilities | $ | 96.8 |  |  | $ | 100.3 |
Long-term debt | 104.6 |  |  | 110.1 |
Other liabilities | 1.2 |  |  | 0.1 |
Members' equity | 340.5 |  |  | 325.1 |
Total liabilities and members' equity | $ | 543.1 |  |  | $ | 535.6 |
Affiliate Income Statement [Table Text Block] |
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Net revenue | $ | 114.5 |  |  | $ | 109.4 |  |  | $ | 216.1 |  |  | $ | 212.7 |
Operating and SG&A expense | 84.4 |  |  | 83.8 |  |  | 163.3 |  |  | 165.5 |
Depreciation and amortization | 6.6 |  |  | 5.1 |  |  | 13.1 |  |  | 10.9 |
Total operating expense | 91.0 |  |  | 88.9 |  |  | 176.4 |  |  | 176.4 |
Operating income | 23.5 |  |  | 20.5 |  |  | 39.7 |  |  | 36.3 |
Interest and other expense, net | (2.6 | ) |  | (2.7 | ) |  | (4.9 | ) |  | (5.3 | )
Net income | $ | 20.9 |  |  | $ | 17.8 |  |  | $ | 34.8 |  |  | $ | 31.0 |

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- Definition Affiliate Income Statement [Table Text Block] + References No definition available. + Details
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