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Other Contingencies (Details) (USD $)
1 Months Ended 6 Months Ended 1 Months Ended
Jul. 31, 2011
Jun. 30, 2013
financial_covenant
state
Jun. 30, 2013
Standby Letter Of Credit [Member]
Jan. 31, 2013
Maximum [Member]
Short-term Debt [Line Items]        
Bank line of credit   $ 57,000,000    
Borrowings under line of credit   0    
Irrevocable standby letter of credit, outstanding     43,520,000  
Reduction of bank line of credit   $ (43,520,000)    
Number of financial covenants   2    
Line of credit expiration date   Jun. 30, 2014    
Number of states in which entity operates   48    
Percentage of reduction to Medicare payments to nursing centers 11.10%      
Percentage of reduction of Medicare payments to plans and providers       2.00%