Schedule of Long-Term Debt and Capital Lease Obligations (Detail) (USD $)	6 Months Ended
	Jun. 30, 2014		Dec. 31, 2013
Long Term Debt [Line Items]
Long-term debt	$ 28,657,826		$ 17,950,911
Current portion of long-term debt	3,146,727		7,919,179
Long-term debt	25,511,099		10,031,732
Capital lease obligations
Long Term Debt [Line Items]
Debt instrument, effective interest rate, minimum	5.50%	[1]
Debt instrument, effective interest rate, maximum	9.10%	[1]
Long-term debt	613,432		2,477,985
Senior Lenders | Note Payable
Long Term Debt [Line Items]
Debt instrument, effective interest rate	4.40%	[1]
Debt instrument maturity date	2021-07
Long-term debt	27,500,000
Other Lenders | Notes payable - settlements
Long Term Debt [Line Items]
Debt instrument, effective interest rate, minimum	5.25%	[1]
Debt instrument, effective interest rate, maximum	5.75%	[1]
Long-term debt	232,787		1,189,725
Other Lenders | Notes payable - settlements | Minimum
Long Term Debt [Line Items]
Debt instrument maturity date	2016-04
Other Lenders | Notes payable - settlements | Maximum
Long Term Debt [Line Items]
Debt instrument maturity date	2018-01
Other Lenders | Notes payable - THE
Long Term Debt [Line Items]
Debt instrument, effective interest rate, minimum	4.60%	[1]
Debt instrument, effective interest rate, maximum	8.00%	[1]
Long-term debt	233,252		311,149
Other Lenders | Notes payable - THE | Minimum
Long Term Debt [Line Items]
Debt instrument maturity date	2015-01
Other Lenders | Notes payable - THE | Maximum
Long Term Debt [Line Items]
Debt instrument maturity date	2016-02
Other Lenders | Notes payable - acquisition
Long Term Debt [Line Items]
Debt instrument, effective interest rate	6.00%	[1]
Long-term debt	78,355		99,610
Other Lenders | Notes payable - acquisition | Minimum
Long Term Debt [Line Items]
Debt instrument maturity date	2014-12
Other Lenders | Notes payable - acquisition | Maximum
Long Term Debt [Line Items]
Debt instrument maturity date	2015-10
Other Lenders | Line of credit
Long Term Debt [Line Items]
Long-term debt			896,000
Other Lenders | Note payable - working capital
Long Term Debt [Line Items]
Long-term debt			3,715,088
Other Lenders | Note payable - equity investments
Long Term Debt [Line Items]
Long-term debt			3,270,427
Other Lenders | Note payable - management agreements
Long Term Debt [Line Items]
Long-term debt			640,466
Other Lenders | Note payable - assumption
Long Term Debt [Line Items]
Long-term debt			146,857
Other Lenders | Note Payable Preferred Interest Redemption
Long Term Debt [Line Items]
Long-term debt			5,100,000
Other Lenders | Notes payable - physician partners
Long Term Debt [Line Items]
Long-term debt			$ 103,604

[1] Effective rate as of June 30, 2014