Stockholders' Equity (Cash Dividends Paid) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended	3 Months Ended		1 Months Ended
	Mar. 03, 2014 Common Stock [Member]	Mar. 31, 2014 Common Stock [Member]	Mar. 31, 2014 Preferred Stock [Member]	Jan. 30, 2014 9.50% Series A Preferred Stock [Member] Preferred Stock [Member]	Jan. 30, 2014 9.00% Series B Preferred Stock [Member] Preferred Stock [Member]
Dividends Payable [Line Items]
Record Date	Feb. 17, 2014			Jan. 29, 2014	Jan. 29, 2014
Payment Date	Mar. 03, 2014			Jan. 30, 2014	Jan. 30, 2014
Per Share Amount (in dollars per share)	$ 0.250			$ 2.375	$ 2.250
Total Dividend Paid	$ 1,814	$ 1,814	$ 1,305	$ 594	$ 711