Quarterly Data (Details) (Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Data (Textual) [Abstract]
Litigation Award	$ 0	$ 0	$ (101,200,000)
Impairment charge, intangible assets	1,400,000		18,200,000
Goodwill, Impairment Loss	$ 0	$ 8,300,000	$ 0