Stockholders' Equity Stockholders' Equity Dividends (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended																			3 Months Ended			12 Months Ended
	Nov. 28, 2014	Nov. 05, 2014	Aug. 22, 2014	Jul. 31, 2014	May 23, 2014	May 01, 2014	Mar. 21, 2014	Feb. 24, 2014	Dec. 13, 2013	Nov. 05, 2013	Sep. 13, 2013	Aug. 06, 2013	Jun. 14, 2013	May 07, 2013	Mar. 27, 2013	Mar. 06, 2013	Dec. 18, 2012	Apr. 05, 2012	Mar. 14, 2012	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity [Abstract]
Common Stock, Dividends, Per Share, Declared		$ 0.04		$ 0.04		$ 0.04		$ 0.04		$ 0.03		$ 0.03		$ 0.03		$ 0.03	$ 0.03		$ 0.05		$ 0.00	$ 0.00	$ 0.16	$ 0.12	$ 0.08
Dividends, Common Stock, Cash	$ 832		$ 834		$ 834		$ 836		$ 486		$ 486		$ 486		$ 486			$ 518		$ 464	$ 0	$ 0	$ 3,336	$ 1,944	$ 982