XML 48 R61.htm IDEA: XBRL DOCUMENT v2.4.1.9
Basis of Presentation and Summary of Significant Accounting Policies (Narrative 3) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Research and Development Expense $ 11.3us-gaap_ResearchAndDevelopmentExpense $ 13.4us-gaap_ResearchAndDevelopmentExpense $ 13.2us-gaap_ResearchAndDevelopmentExpense
Cash and Cash Equivalents, Maximum Maturity Period of Highly Liquid Cash Investments 3 months