Related Party Transactions (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Related Party Transaction [Line Items]
Expenses for legal services	$ 293,000	$ 118,000	$ 1,517,000	$ 663,000
Accounts payable for amounts due	342,000		342,000		266,000
Revolving credit facility availability	200,000,000		200,000,000
Discontinued Operations [Member]
Related Party Transaction [Line Items]
Expenses for legal services	6,000		176,000	154,000
Senior Credit Agreement [Member]
Related Party Transaction [Line Items]
Revolving credit facility availability	$ 200,000,000		$ 200,000,000