Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Reconciliation between U.S. Statutory Federal Income Tax Rate and Effective Income Tax Rate (Narrative) (Detail)

v3.6.0.2
Summary of Significant Accounting Policies - Reconciliation between U.S. Statutory Federal Income Tax Rate and Effective Income Tax Rate (Narrative) (Detail) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Deferred financing costs related to mortgage notes and bonds payable   $ 0
Mortgage notes and bonds payable, net $ 190,797,012 141,578,935
As Previously Reported    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Deferred financing costs related to mortgage notes and bonds payable   1,054,222
Mortgage notes and bonds payable, net   $ 142,633,157