v3.10.0.1

Investments in Non-Controlled Entities (Narrative) (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Equity Method Investments and Joint Ventures [Abstract] |  |
Equity Method Investments Unamortized Excess Investment Net | $ 34.8 | $ 59.7

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