Business Transformation Expenses (Details 2) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Consumer-to-Consumer [Member]
Schedule of Business Transformation Expenses By Segment [Line Items]
Business Transformation Expenses	$ 15.2	$ 17.6
Business Solutions [Member]
Schedule of Business Transformation Expenses By Segment [Line Items]
Business Transformation Expenses	5.7	6.7
Other
Schedule of Business Transformation Expenses By Segment [Line Items]
Business Transformation Expenses	$ 7.6	$ 7.9