Consolidated Statements of Income (Unaudited) (Parenthetical) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Expenses:
Net (loss) income attributable to noncontrolling interest, tax	$ 0	$ 613	$ 0	$ 1,591