Stock Based Compensation (Narrative) (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended		6 Months Ended				6 Months Ended				4 Months Ended	12 Months Ended
	Apr. 12, 2013	May 31, 2013	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	May 13, 2013	Dec. 31, 2012	Jun. 30, 2013 Restricted Stock [Member]	Jun. 30, 2013 SNL RSUs [Member]	Jun. 30, 2013 FFO RSUs [Member]	Jun. 30, 2013 Performance based Restricted Stock Unit [Member]	May 13, 2013 Series A Preferred Stock [Member]	Dec. 31, 2012 Series A Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Dividend Rate, Percentage													7.75%	7.75%
Allocated Share-based Compensation Expense			$ 862,000	$ 619,000	$ 3,600,000	$ 2,000,000
Document Fiscal Year Focus					2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period									159,782	124,992	65,347
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period									3 years
Payout Range Minimum												0.00%
Payout Range Maximum												200.00%
Payout Per Unit Average Thirty Days Closing Price												30 days
Common Stock, Shares, Issued	16,500,000		124,257,723		124,257,723			107,660,080
Proceeds from Issuance of Common Stock	165,100,000				165,100,000	0
Preferred Stock, Par or Stated Value Per Share			$ 1		$ 1		$ 1.00	$ 1
Preferred Stock, Redemption Price Per Share							$ 25.00
Preferred Stock, Redemption Amount							74,800,000
Preferred stock redemption reduction of net loss		$ 2,700,000