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Investment in and Advances to Unconsolidated Affiliates (Tables) | 9 Months Ended
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Sep. 30, 2018
Investments in and Advances to Affiliates, Schedule of Investments [Abstract] |
Affiliate Balance Sheet [Table Text Block] |
(in millions) | September 30, 2018 |  | December 31, 2017
Assets |  |  |
Current assets | $ | 21.5 |  |  | $ | 64.5 |
Property and equipment, net | 98.0 |  |  | 234.6 |
Other assets, net | 107.0 |  |  | 236.5 |
Total assets | $ | 226.5 |  |  | $ | 535.6 |
Liabilities and Members' Equity |  |  |
Current liabilities | $ | 19.3 |  |  | $ | 100.3 |
Long-term debt | 1.6 |  |  | 110.1 |
Other liabilities | 0.1 |  |  | 0.1 |
Members' equity | 205.5 |  |  | 325.1 |
Total liabilities and members' equity | $ | 226.5 |  |  | $ | 535.6 |
Affiliate Income Statement [Table Text Block] |
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Net revenue | $ | 105.2 |  |  | $ | 128.4 |  |  | $ | 322.1 |  |  | $ | 340.9 |
Operating and SG&A expense | 76.4 |  |  | 97.9 |  |  | 240.5 |  |  | 263.3 |
Depreciation and amortization | 5.9 |  |  | 5.2 |  |  | 19.0 |  |  | 16.1 |
Total operating expense | 82.3 |  |  | 103.1 |  |  | 259.5 |  |  | 279.4 |
Operating income | 22.9 |  |  | 25.3 |  |  | 62.6 |  |  | 61.5 |
Interest and other, net | (1.0 | ) |  | 0.3 |  |  | (5.6 | ) |  | (4.7 | )
Net income | $ | 21.9 |  |  | $ | 25.6 |  |  | $ | 57.0 |  |  | $ | 56.8 |

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