Schedule of Short-Term Debt Obligations (Detail) (USD $)	Sep. 30, 2013	Mar. 19, 2013	Dec. 31, 2012	Jul. 22, 2013 Note payable - S&H Leasing	Sep. 30, 2013 Senior Lender Notes payable - working capital	Dec. 31, 2012 Senior Lender Notes payable - working capital	Jul. 22, 2013 Senior Lender Note payable - FHA	Sep. 30, 2013 Other Lenders Notes payable - working capital		Dec. 31, 2012 Other Lenders Notes payable - working capital	Sep. 30, 2013 Other Lenders Note payable - FHA		Dec. 31, 2012 Other Lenders Note payable - FHA	Sep. 30, 2013 Other Lenders Note payable - S&H Leasing		Dec. 31, 2012 Other Lenders Note payable - S&H Leasing	Sep. 30, 2013 Other Lenders Note payable - HC REIT	Dec. 31, 2012 Other Lenders Note payable - HC REIT	Sep. 30, 2013 Other Lenders Notes payable - acquisition	Dec. 31, 2012 Other Lenders Notes payable - acquisition	Sep. 30, 2013 Other Lenders Insurance premium financings	Dec. 31, 2012 Other Lenders Insurance premium financings	Sep. 30, 2013 Minimum Senior Lender Notes payable - working capital		Sep. 30, 2013 Minimum Other Lenders Notes payable - acquisition		Sep. 30, 2013 Minimum Other Lenders Insurance premium financings		Sep. 30, 2013 Maximum Senior Lender Notes payable - working capital		Sep. 30, 2013 Maximum Other Lenders Notes payable - acquisition		Sep. 30, 2013 Maximum Other Lenders Insurance premium financings
Short-term Debt [Line Items]
Debt instrument interest rate				11.50%			6.75%	5.00%	[1]		7.00%	[1]		11.50%	[1]								6.50%	[1]	6.00%	[1]	3.10%	[1]	7.00%	[1]	8.00%	[1]	3.90%	[1]
Short-term debt	$ 7,316,083	$ 2,010,027	$ 2,007,597		$ 2,787,937	$ 778,287		$ 800,000		$ 796,231	$ 1,730,489			$ 1,865,600				$ 100,000	$ 25,188	$ 156,242	$ 106,869	$ 176,837

[1] Effective rate as of September 30, 2013