Stock Based Compensation ViSalus Options (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended				3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2014 visalus [Member]	Jun. 30, 2014 Non Vested Restricted Stock And Restricted Stock Unit Awards 2013 [Member]	Jun. 30, 2013 Non Vested Restricted Stock And Restricted Stock Unit Awards 2013 [Member]	Jun. 30, 2014 Non Vested Restricted Stock And Restricted Stock Unit Awards 2013 [Member]	Jun. 30, 2013 Non Vested Restricted Stock And Restricted Stock Unit Awards 2013 [Member]	Jun. 30, 2014 Employee Stock Option [Member]	Jun. 30, 2013 Employee Stock Option [Member]	Jun. 30, 2014 Employee Stock Option [Member]	Jun. 30, 2013 Employee Stock Option [Member]
Stock or Unit Option Plan Expense									$ 0	$ 0.5	$ 0	$ 0.5
Restricted Stock or Unit Expense					(0.2)	0.6	0	0.6
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense					$ (0.1)	$ 0.2	$ 0	$ 0.2	$ 0	$ 0.2	$ 0	$ 0.2
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	2,500	3,515,988	8,750	3,859,888
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	358,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	(14,100)