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Summary of Significant Accounting Policies (Details) (USD $)
12 Months Ended 10 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2012
item
Dec. 31, 2011
Dec. 31, 2010
Nov. 15, 2010
Predecessor
Nov. 15, 2010
Discontinued operations
Predecessor
Mar. 31, 2012
Workforce Services
Dec. 31, 2012
Workforce Services
Segments              
Number of reportable segments 4            
Revenue Recognition              
Number of different state Medicaid programs from which revenues are primarily derived 35            
Operating funding source through Medicaid reimbursement (as a percent) 66.00% 66.00% 66.00%        
Operating funding source from the DOL (as a percent) 8.00% 8.00% 8.00%        
Operating funding source percentage from other payors 26.00% 26.00% 26.00%        
Goodwill              
Margin percentage decrease in excess of fair value of goodwill over carrying value           3.00%  
Annual revenues from WeCARE contract             $ 28,000,000
Charge for goodwill impairment       250,181,000 13,000,000    
Charge for goodwill impairment including amounts included in discontinued operations       $ 263,155,000