Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) - USD ($)
1 Months Ended 6 Months Ended
Aug. 31, 2017
Jun. 30, 2018
Dec. 31, 2017
Business Acquisition, Contingent Consideration      
Contingent consideration   $ 27,700,000 $ 41,400,000
Membership interest contingent on successful bid   15.00%  
Credit line capacity   $ 196,900,000  
Purchase obligation   84,400,000  
Accrued Liabilities      
Business Acquisition, Contingent Consideration      
Contingent consideration   2,000,000 11,800,000
Other Noncurrent Liabilities      
Business Acquisition, Contingent Consideration      
Contingent consideration   $ 25,700,000 $ 29,600,000
Line of Credit | Veterans Accountable Care Group LLC      
Business Acquisition, Contingent Consideration      
Credit line capacity $ 50,000,000.0    
Line of credit maturity term 5 years    
Interest rate on credit facility 6.50%