Summary of Significant Accounting Policies (Financial Statement Presentation) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2014
Goodwill		$ 317,000,000	$ 317,000,000
Goodwill, Impairment Loss	135,800,000
Parent Company [Member]
Goodwill, Impairment Loss	135,800,000
Cash and Cash Equivalents [Member]
Amount reclassed to Other Current and Non-Current Asset		400,000
Property, Plant and Equipment [Member]
Amount reclassed to Other Current and Non-Current Asset		600,000
Accounts Receivable [Member]
Amount reclassed to Other Current and Non-Current Asset		17,400,000
Intangible Assets Reclassed [Member]
Amount reclassed to Other Current and Non-Current Asset		$ 1,400,000