XML 55 R72.htm IDEA: XBRL DOCUMENT

Equity - Preferred Stock Dividends (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Class of Stock
Dividends Paid	$ 2,815sd_PreferredDividendsPaid	$ 3,315sd_PreferredDividendsPaid
Dividends Unpaid	8,066sd_PreferredDividendsAccruedNotYetPaid	10,566sd_PreferredDividendsAccruedNotYetPaid
Total	10,881	13,881
8.5% Convertible perpetual preferred stock
Class of Stock
Dividends Paid	2,815	2,815
Dividends Unpaid	2,816	2,816
Total	5,631	5,631
6.0% Convertible perpetual preferred stock
Class of Stock
Dividends Paid	0	500
Dividends Unpaid	0	2,500
Total	0	3,000
7.0% Convertible perpetual preferred stock
Class of Stock
Dividends Paid	0	0
Dividends Unpaid	5,250	5,250
Total	$ 5,250	$ 5,250