Stockholders' Equity (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended
	Dec. 17, 2012	Mar. 31, 2014	Dec. 31, 2013
Stockholders' Equity [Abstract]
Total capital stock, shares authorized		400,000,000	400,000,000
Common stock, shares authorized		300,000,000	300,000,000
Preferred stock, shares authorized		100,000,000	100,000,000
Common stock, par value per share		$ 0.01	$ 0.01
Preferred stock, par value per share		$ 0.01	$ 0.01
Preferred stock, shares outstanding		0	0
Common Stock, Dividends, Per Share, Declared	$ 0.25
Dividends, Common Stock	$ 23,000,000
Maximum amount of dividends or stock repurchases permissable under the Credit Facility		200,000,000
Annual amount of dividends or stock repurchases permissable under the Credit Facility		25,000,000
Amount available for dividend payments, stock repurchases or Senior Notes repurchases at period end		$ 393,000,000