Legal Matters and Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2014
Loss Contingencies [Line Items]
Product liability insurance, amount per incident		$ 25
Product liability insurance, aggregate annual amount		25
Patent Infringement [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Expense	$ 0.9	$ 0.9