Summary of Significant Accounting Policies (Details Textuals) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2013
Summary of Significant Accounting Policies (Textuals) [Abstract]
Amortization expense	$ 1.4	$ 1.9
Future Amortization Expense Current Year			5.9
Aggregate amortization expense for 2014	5.8
Aggregate amortization expense for 2015	5.1
Aggregate amortization expense for 2016	5.0
Aggregate amortization expense for 2017	4.7
Aggregate amortization expense for 2018	4.5
Purchased intangible amortization, net of tax	0.9	1.1
Amortization of Acquired Intangible Assets	1.3	1.7
Amortization expense associated with capitalized software	3.7	3.2
Standard Warranty Period	one
Share - based compensation expense	$ 2.8	$ 3.3