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Note 12 - Non-controlling interests (Tables)
12 Months Ended
Dec. 31, 2012
Redeemable Noncontrolling Interest [Table Text Block]
 
 
2012
   
2011
 
 
 
 
   
 
 
Balance, January 1
  $ 141,404     $ 174,358  
NCI share of earnings
    13,952       14,692  
NCI share of other comprehensive earnings
    (394 )     (171 )
NCI redemption increment
    21,131       12,941  
Distributions paid to NCI
    (16,321 )     (10,617 )
Purchases of interests from NCI, net
    (9,709 )     (57,037 )
NCI recognized on business acquisitions
    1,906       7,238  
Balance, December 31
  $ 151,969     $ 141,404