Summary of Significant Accounting Policies Self-Insured Retentions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Supplementary Insurance Information, by Segment [Line Items]
Total Liability/Deductible for Group Health Insurance Per Claim	$ 0.3
Total Liability/Deductible for Workers Compensation Per Claim	0.4
Total Liability/Deductible for Product/General and Auto Insurance Per Claim	$ 0.3