Summary of Significant Accounting Policies (Cost of Sales and Selling, General and Administrative Expenses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Distribution [Member] | Cost of Sales and Selling, General and Administrative Expenses [Member]
Component of Operating Other Cost and Expense [Line Items]
Inventory Related Costs Including Purchasing Costs, Receiving Costs and Inspection Costs	$ 3.2	$ 3.4	$ 3.0