Net Income Per Common Share (Narrative) (Details)	3 Months Ended				12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	May 15, 2013	Dec. 31, 2010 Public Offering [Member] tMEDS [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Units issued					13,800,000
Common stock, shares issued	978,499,721		978,044,909	122,800,000
Number of anti-dilutive shares	24,500,000	28,600,000