CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2010
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		4,103
Accrued RSA dividends	$ 13	$ 7