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Loans Payable, Senior Notes, and Mortgage Company Loan Facility Term Loan Facility (Detail Textuals 1) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 31, 2014
Apr. 30, 2014
Oct. 31, 2014
Oct. 31, 2015
Five year term note [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Term     5 years  
Proceeds from Bank Debt $ 15.0 $ 485.0    
Debt Instrument, Interest Rate, Effective Percentage       1.60%
Federal Funds Effective Swap Rate [Member] | Five year term note [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Basis Spread on Variable Rate       0.50%
Percent interest added when euro rate option selected       0.25%
London Interbank Offered Rate (LIBOR) [Member] | Five year term note [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Basis Spread on Variable Rate       1.00%
Guarantor Subsidiaries [Member]        
Debt Instrument [Line Items]        
Noncontrolling Interest, Ownership Percentage by Parent       100.00%