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Proforma Disclosure (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Business Combinations [Abstract] |  |
Business Acquisition, Pro Forma Revenue | $ 414.6 | $ 456.3
Business Acquisition, Pro Forma Net Income (Loss) | $ (48.8) | $ (65.1)
Business Acquisition ProForma Earnings Per Share Basic And Diluted | $ (0.63) | $ (0.74)

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