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Investment in and Advances to Unconsolidated Affiliates Affiliate Income Statement (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Affiliate Income Statement [Abstract] |  |  |  |
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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