CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Non-cash activity:
Deconsolidation of that partnership, cash and cash equivalents		$ 1,502
Deconsolidation of that partnership, net assets	39,496
Deconsolidation of that partnership, noncontrolling interests	40,998
Accrued RSA dividends	278	626	1,393
Reduction in deferred tax asset for excess of recorded RSA tax benefit		1,872
Zero coupon subordinated debenture non-cash dividend		59,580
Spin-off of subsidiary, cash and cash equivalents
Spin-off of subsidiary, investment in subsidiary			300
Spin-off of subsidiary, net liabilities			199
Spin-off of subsidiary, noncontrolling interests			$ 412