Restructuring and Other Charges (Details) (USD $)	3 Months Ended			12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2009	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2012 Other Segments [Member] Restructuring Reserve 2012 [Member]	Dec. 31, 2012 The Deal, LLC [Member] Restructuring Reserve 2012 [Member]	Dec. 31, 2009 Restructuring Reserve 2009 [Member]
Restructuring and Other Charges (Details) [Line Items]
Restructuring Charges	$ 0	$ 385,610		$ 386,000	$ 1,800,000	$ 3,400,000	$ 3,500,000	$ 3,500,000
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent			8.00%