Annual report pursuant to Section 13 and 15(d)

Segment Information (Details)

v2.4.0.6
Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
segments
Dec. 31, 2011
Dec. 31, 2010
Number of reportable segments 2    
Premium and service revenues from external customers $ 8,238,947 $ 5,181,007 $ 4,283,833
Premium and service revenues from internal customers 0 0 0
Premium and service revenues 8,238,947 5,181,007 4,283,833
Earnings (loss) from operations (27,121) 190,324 157,069
Total assets 2,741,682 2,190,336 1,943,882
Medicaid Managed Care [Member]
     
Premium and service revenues from external customers 7,394,173 4,450,336 3,679,807
Premium and service revenues from internal customers 89,143 65,215 60,676
Premium and service revenues 7,483,316 4,515,551 3,740,483
Earnings (loss) from operations (83,189) 152,995 117,106
Total assets 2,365,651 1,754,108 1,552,886
Specialty Services [Member]
     
Premium and service revenues from external customers 844,774 730,671 604,026
Premium and service revenues from internal customers 1,706,161 753,596 508,157
Premium and service revenues 2,550,935 1,484,267 1,112,183
Earnings (loss) from operations 56,068 37,329 39,963
Total assets 376,031 436,228 390,996
Eliminations [Member]
     
Premium and service revenues from external customers 0 0 0
Premium and service revenues from internal customers (1,795,304) (818,811) (568,833)
Premium and service revenues (1,795,304) (818,811) (568,833)
Earnings (loss) from operations 0 0 0
Total assets $ 0 $ 0 $ 0