Income Taxes (Textuals) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Tax effected in state net operating loss carryforwards	$ 1.6	$ 2.6
Tax effected in foreign net operating loss carryforwards	16.8	16.1
Future foreign taxable income	62.7
U.S. taxable income	315.0	$ 225.7
Undistributed earnings of foreign subsidiaries	107.7
Unrecognized tax benefits that would impact the effective tax rate	$ 2.4