Equity (Preferred Stock) (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Sep. 30, 2002
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock Shares Authorized		500,000
Preferred Stock Par Or Stated Value Per Share		$ 0.001
Cash Dividend Rate	8.00%
Preferred Stock, Liquidation Preference Per Share	$ 100
Series C Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock Shares Outstanding	14,800
Common Stock Convertable From Preferred Shares Outstanding	1,700,000
Preferred Stock, Dividend Payment Terms	cumulative;compounded quarterly based on the original issue price;payable in cash or common stock, at 4.5% or 4.92%, respectively; andpayable to the preferred stock investors prior to payment of any other dividend on any other shares of our capital stock.
Conversion price	$ 8.75
Cash Dividend Rate	4.50%
Stock Dividend Rate	4.92%
Face Value Of Redeemed Shares	$ 22.2
Preferred shares converted to common stock	22,200
Common stock issued upon conversion	2,500,000
Preferred Stock, Liquidation Preference Per Share	$ 1,000
Series C Convertible Preferred Stock [Member] | Call [Member]
Class of Stock [Line Items]
Preferred Stock, Redemption Terms	The Series C Preferred Stock is redeemable for a cash payment of an amount equal to 102% of the sum of the liquidation preference of $1,000 per share plus accrued but unpaid dividends. If we call the Series C Preferred Stock for redemption, the holders have the right to convert their shares into a newly issued preferred stock identical in all respects to the Series C Preferred Stock except that such newly issued preferred stock will not bear a dividend.
Cash Payment As A Percentage Of Liquidation Preference	102.00%
Series C Convertible Preferred Stock [Member] | Tenth Anniversary [Member]
Class of Stock [Line Items]
Market Value, Minumum	$ 500
Series C Convertible Preferred Stock [Member] | Change Of Control [Member]
Class of Stock [Line Items]
Cash Payment As A Percentage Of Liquidation Preference	115.00%
Internal Rate Of Return To Holders	15.00%