Noncontrolling Interests (Details of the income from NCI table) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Components on noncontrolling interests
Net income attributable to nonredeemable noncontrolling interests			$ (1,157)	$ (1,233)
Net loss attributable to redeemable noncontrolling interests			2,024	(29)
Net loss (income)	$ 602	$ 681	$ (867)	$ 1,262

Amount of Net Income (Loss) attributable to noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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