General form of registration statement for all companies including face-amount certificate companies

Summary of Significant Accounting Policies - Income Taxes - Additional Information (Detail)

v3.3.1.900
Summary of Significant Accounting Policies - Income Taxes - Additional Information (Detail) - USD ($)
6 Months Ended 12 Months Ended
Nov. 30, 2015
May. 31, 2015
Summary Of Significant Accounting Policies [Line Items]    
Unrecognized benefits $ 0 $ 0
Minimum    
Summary Of Significant Accounting Policies [Line Items]    
Income tax examination, year under examination 2012 2012