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ACQUISITIONS (Tables)
 12 Months Ended
Dec. 31, 2012
Business Combinations [Abstract]  
Business combination
The following table summarizes the business combinations for the three years ended December 31, 2012.  The purchase price, inclusive of all retroactive balance sheet settlements to date, is presented below (in millions): 
 
Effective Date
Market
Price
Preferred Health Systems, Inc. (“PHS”)
February 1, 2010
Kansas
$
94.3

MHP, Inc. (“MHP”)
October 1, 2010
Missouri & Arkansas
$
112.3

Children’s Mercy’s Family Health Partners, Inc. (“FHP”)
January 1, 2012
Kansas & Missouri
$
52.1