Future Principal Payment Requirements on Outstanding Secured Debt (Detail) (USD $)	Dec. 31, 2013
Debt Disclosure [Abstract]
2014	$ 26,089,586
2015	30,827,135
2016	114,583,851
2017	44,044,243
2018	19,074,211
2019 and thereafter	155,752,897
Total payments	390,371,923
Unamortized fair value adjustment	913,837
Total	$ 391,285,760

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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