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Note 22 (Detail) - Assets Measured at Fair Value on a Nonrecurring Basis (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Pre-Impairment Amount $ 3,400 [1] $ 18,700 [1]
Total Losses 587 [2] 3,100
Sold and Unsold Homes and Lots Under Development [Member] | Fair Value, Inputs, Level 3 [Member]
    
Fair Value 2,327 1,724
Sold and Unsold Homes and Lots Under Development [Member]
    
Pre-Impairment Amount 2,895 2,428
Total Losses (568) (704)
Land and Land Options Held for Future Development or Sale [Member] | Fair Value, Inputs, Level 3 [Member]
    
Fair Value 466 13,878
Land and Land Options Held for Future Development or Sale [Member]
    
Pre-Impairment Amount 485 16,315
Total Losses $ (19) $ (2,437)
[1] During the three months ended January 31, 2013, there were impairments of $587 thousand. The impairments were in the Northeast $568 thousand, in the Mid-Atlantic $2 thousand and in the Southeast $17 thousand.
[2] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.