Stockholders' Equity (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended			3 Months Ended	12 Months Ended
	Mar. 31, 2014	Feb. 28, 2014	Jan. 31, 2014	Jun. 30, 2010	Dec. 31, 2008	Jan. 25, 2008
Stockholders' Equity [Abstract]
Shares authorized for repurchase (in shares)						1,000,000
Total number of shares purchased (in shares)				223,051	491,572
Payments for shares purchased				$ 5.2	$ 11.5