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MANDATORILY REDEEMABLE NONCONTROLLING INTEREST (ROLLFORWARD TABLE) (DETAILS) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Mandatorily redeemable noncontrolling interest [Line Items]        
Mandatorily redeemable noncontrolling interest, January 1     $ 2,509  
Net income attributable to mandatorily redeemable noncontrolling interest 14,689 19,169 54,122 50,494
Working capital distributed to mandatorily redeemable noncontrolling interest (1,244) (272) (1,244) (272)
Change in redemption value     (1,109)  
Mandatorily redeemable noncontrolling interest, September 30 2,790   2,790  
Iknowtion [Member]
       
Mandatorily redeemable noncontrolling interest [Line Items]        
Mandatorily redeemable noncontrolling interest, January 1     2,509 1,067
Net income attributable to mandatorily redeemable noncontrolling interest     416 284
Change in redemption value     1,109 1,178
Mandatorily redeemable noncontrolling interest, September 30 $ 2,790 $ 2,257 $ 2,790 $ 2,257