Lines of Credit and Financing Arrangements (Details 3) (Revolving Credit Facility [Member])	Dec. 31, 2014	Dec. 31, 2013
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Weighted average borrowing rate	1.88%	1.17%

Weighted average interest rate of long-term debt outstanding.

No definition available.

Name:	us-gaap_LongtermDebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant