CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010	Dec. 31, 2009
Non-cash activity:
Deconsolidation of that partnership, cash and cash equivalents			$ 1,251
Deconsolidation of that partnership, net assets			2,852
Deconsolidation of that partnership, noncontrolling interests	0		4,103
Accrued RSA dividends	$ 17	$ 23