Selected Quarterly Financial Data Schedule of Quarterly Financial Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Asset Impairment Charges		$ 0
Goodwill, Impairment Loss	$ 123,600		$ 99,501	$ 21,310