Equity - Convertible Preferred Stock Table (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding, beginning of period	7,251,515	7,251,515
Shares outstanding, end of period	7,251,515	7,251,515
5.75% Cumulative Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding, beginning of period	1,497,000	1,497,000	1,497,000	1,497,000
Shares outstanding, end of period	1,497,000	1,497,000	1,497,000	1,497,000
Preferred Stock, Liquidation Preference Per Share	$ 1,000,000		$ 1,000,000
5.75% Cumulative Convertible Preferred Stock Series A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding, beginning of period	1,100,000	1,100,000	1,100,000	1,100,000
Shares outstanding, end of period	1,100,000	1,100,000	1,100,000	1,100,000
Preferred Stock, Liquidation Preference Per Share	$ 1,000,000		$ 1,000,000
4.50% Cumulative Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding, beginning of period	2,559,000	2,559,000	2,559,000	2,559,000
Shares outstanding, end of period	2,559,000	2,559,000	2,559,000	2,559,000
Preferred Stock, Liquidation Preference Per Share	$ 100,000		$ 100,000
5.0% Cumulative Convertible Preferred Stock Series Two Thousand And Five B [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding, beginning of period	2,096,000	2,096,000	2,096,000	2,096,000
Shares outstanding, end of period	2,096,000	2,096,000	2,096,000	2,096,000
Preferred Stock, Liquidation Preference Per Share	$ 100,000		$ 100,000