Commitments And Contingencies (Narrative) (Details) (USD $)	12 Months Ended	3 Months Ended
	Dec. 31, 2013	Mar. 31, 2014 Maximum [Member]	Mar. 31, 2014 Minimum [Member]
Commitments And Contingencies [Line Items]
Range of possible losses in excess of accrued liability relating to legal matters		$ 4,400,000	$ 0
Interest rate associated with class action complaint	0.00%