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Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Tables)
 6 Months Ended
Jun. 30, 2013
Noncontrolling Interest [Abstract]  
   
Six Months Ended
June 30,
 
   
2013
   
2012
 
Balance, beginning of period
  $ 20,046     $ 18,375  
Net income attributable to noncontrolling interest included in liabilities
    288       11,780  
Net income attributable to noncontrolling interest included in equity
    678       296  
Accretion of interest on RLW put/call
    --       497  
Change in fair value of RLW put/call
    (59 )     733  
Change in fair value of RHB obligation
    666       --  
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies
    --       15,196  
Distributions to noncontrolling interest owners
    (2,735 )     (4,885 )
RLW Put/Call Payout
    (509 )     --  
Other
    --       (40 )
Balance, end of period
  $ 18,375     $ 41,952