Acquisitions Of Businesses (Details) $ in Millions		3 Months Ended		6 Months Ended
	Jun. 01, 2015 Company	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Jun. 01, 2015
Number of businesses acquired	1
Non-cash income from contingent consideration arrangements | $		$ 0.1	$ 0.2	$ 0.2	$ 0.2