XML 89 R71.htm IDEA: XBRL DOCUMENT v3.6.0.2
Note 12 - Reduction of Inventory to Fair Value - Inventory Impairments by Homebuilding Segment (Details)
$ in Millions
12 Months Ended
Oct. 31, 2016
USD ($)
Oct. 31, 2015
USD ($)
Oct. 31, 2014
USD ($)
Dollar amount of impairment $ 24.5 $ 7.3 $ 1.2
Homebuilding [Member]      
Number of communities (Dimensionless number) 20 12 5
Dollar amount of impairment $ 24.5 $ 7.3 $ 1.2
Pre-impairment value [1] $ 88.4 $ 29.4 $ 4.4
Homebuilding [Member] | Northeast [Member]      
Number of communities (Dimensionless number) 5 2 2
Dollar amount of impairment $ 9.5 $ 0.8 $ 0.3
Pre-impairment value [1] $ 33.8 $ 0.9 $ 0.6
Homebuilding [Member] | Mid-Atlantic [Member]      
Number of communities (Dimensionless number) 1
Dollar amount of impairment $ 0.9
Pre-impairment value [1] $ 2.5
Homebuilding [Member] | Midwest [Member]      
Number of communities (Dimensionless number) 12 4 3
Dollar amount of impairment $ 13.5 $ 1.3 $ 0.9
Pre-impairment value [1] $ 43.7 $ 8.4 $ 3.8
Homebuilding [Member] | Southeast [Member]      
Number of communities (Dimensionless number) 3 4
Dollar amount of impairment $ 1.5 $ 2.5
Pre-impairment value [1] $ 10.9 $ 10.1
Homebuilding [Member] | Southwest [Member]      
Number of communities (Dimensionless number)
Dollar amount of impairment
Pre-impairment value [1]
Homebuilding [Member] | West [Member]      
Number of communities (Dimensionless number) 1
Dollar amount of impairment $ 1.8
Pre-impairment value [1] $ 7.5
[1] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.