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Fair Value Disclosures (Tables)
 6 Months Ended
Apr. 30, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Summary of assets and (liabilities), measured at fair value on a recurring basis
The table below provides, as of the dates indicated, a summary of assets (liabilities) related to our financial instruments, measured at fair value on a recurring basis (amounts in thousands):
 
 
 
 
Fair value
Financial Instrument
 
Fair value
hierarchy
 
April 30,
2018
 
October 31, 2017
Mortgage Loans Held for Sale
 
Level 2
 
$
111,811

 
$
132,922

Forward Loan Commitments — Mortgage Loans Held for Sale
 
Level 2
 
$
1,570

 
$
861

Interest Rate Lock Commitments (“IRLCs”)
 
Level 2
 
$
(6,092
)
 
$
(1,293
)
Forward Loan Commitments — IRLCs
 
Level 2
 
$
6,092

 
$
1,293
Aggregate unpaid principal and fair value of mortgage loans held for sale
The table below provides, as of the dates indicated, the aggregate unpaid principal and fair value of mortgage loans held for sale (amounts in thousands):
 
Aggregate unpaid
principal balance
 
Fair value
 
Excess / (Deficiency)
At April 30, 2018
$
112,213

 
$
111,811

 
$
(402
)
At October 31, 2017
$
131,861

 
$
132,922

 
$
1,061
Fair value of inventory adjusted for impairment
The table below provides, for the periods indicated, the fair value of operating communities whose carrying value was adjusted and the amount of impairment charges recognized ($ amounts in thousands):
 
 
 
Impaired operating communities
Three months ended:
Number of
communities tested
 
Number of
communities
 
Fair value of
communities,
net of
impairment charges
 
Impairment charges recognized
Fiscal 2018:
 
 
 
 
 
 
 
January 31
64
 
5
 
$
13,318

 
$
3,736

April 30 (1)
65
 
4
 
$
21,811

 
13,325

 
 
 
 
 
 
 
$
17,061

Fiscal 2017:
 
 
 
 
 
 
 
January 31
57
 
2
 
$
8,372

 
$
4,000

April 30
46
 
6
 
$
25,092

 
2,935

July 31
53
 
4
 
$
5,965

 
1,360

October 31
51
 
1
 
$
6,982

 
1,500

 
 
 
 
 
 
 
$
9,795
Book value and estimated fair value of the Company's debt
The table below provides, as of the dates indicated, the book value and estimated fair value of our debt (amounts in thousands):
 
 
 
April 30, 2018
 
October 31, 2017
 
Fair value
hierarchy
 
Book value
 
Estimated
fair value
 
Book value
 
Estimated
fair value
Loans payable (a)
Level 2
 
$
650,806

 
$
651,929

 
$
639,116

 
$
639,088

Senior notes (b)
Level 1
 
2,869,876

 
2,877,967

 
2,469,876

 
2,626,131

Mortgage company loan facility (c)
Level 2
 
103,550

 
103,550

 
120,145

 
120,145

 
 
 
$
3,624,232

 
$
3,633,446

 
$
3,229,137

 
$
3,385,364

(a)
The estimated fair value of loans payable was based upon contractual cash flows discounted at interest rates that we believed were available to us for loans with similar terms and remaining maturities as of the applicable valuation date.
(b)
The estimated fair value of our senior notes is based upon their market prices as of the applicable valuation date.
(c)
We believe that the carrying value of our mortgage company loan borrowings approximates their fair value.
Operating communities [Member]  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]
The table below summarizes, for the periods indicated, the ranges of certain quantitative unobservable inputs utilized in determining the fair value of impaired operating communities:
Three months ended:
Selling price
per unit
($ in thousands)
 
Sales pace
per year
(in units)
 
Discount rate
Fiscal 2018:
 
 
 
 
 
January 31
381 - 1,029
 
7 - 10
 
13.8% - 19.0%
April 30
485 - 522
 
10 - 16
 
16.9%
 
 
 
 
 
 
Fiscal 2017:
 
 
 
 
 
January 31
692 - 880
 
4 - 12
 
16.3%
April 30
827 - 856
 
6 - 11
 
16.3%
July 31
465 - 754
 
3 - 10
 
16.5% - 19.5%
October 31
467 - 540
 
12 - 30
 
16.4%