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Pending Acquisition - Additional Information (Detail) - Peachstate Health Management, LLC [Member] - Series E Preferred Stock [Member]
Aug. 25, 2015
Business Acquisition [Line Items]  
Preferred stock conversion percentage on closing of merger transaction 19.90%
Preferred stock conversion percentage on approval of merger transaction 5.00%
Preferred stock conversion percentage 85.00%
Preferred stock minimum holding percentage for preferential rights 10.00%
Threshold period for issuance of additional tranches of shares 4 years
Bonus Shares [Member]  
Business Acquisition [Line Items]  
Preferred stock conversion percentage 5.00%