Income Taxes (Details 5) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary of Company's tax payments
Tax (refunds) payments	$ (40.1)	$ (25.8)	$ (16.7)
Domestic Tax Authority [Member]
Summary of Company's tax payments
Tax (refunds) payments	(56.5)	(38.1)	(7.7)
State and Local Jurisdiction [Member]
Summary of Company's tax payments
Tax (refunds) payments	1.4	0.4	(6.8)
Foreign Tax Authority [Member]
Summary of Company's tax payments
Tax (refunds) payments	$ 15.0	$ 11.9	$ (2.2)