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Commitments and Contingencies (Tables)
 3 Months Ended
Jan. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Company land purchase commitments Information regarding our land purchase commitments, as of the dates indicated, is provided in the table below (amounts in thousands):
January 31, 2021October 31, 2020
Aggregate purchase commitments:
Unrelated parties$2,744,059 $2,630,128 
Unconsolidated entities that the Company has investments in8,787 10,097 
Total$2,752,846 $2,640,225 
Deposits against aggregate purchase commitments$207,600 $223,571 
Additional cash required to acquire land2,545,246 2,416,654 
Total
$2,752,846 $2,640,225 
Amount of additional cash required to acquire land included in accrued expenses$18,092 $19,590 
Company mortgage commitments
Information regarding our mortgage commitments, as of the dates indicated, is provided in the table below (amounts in thousands):
January 31,
2021		October 31, 2020
Aggregate mortgage loan commitments:
IRLCs$521,022 $381,116 
Non-IRLCs2,280,509 1,688,801 
Total$2,801,531 $2,069,917 
Investor commitments to purchase:
IRLCs$521,022 $381,116 
Mortgage loans held for sale117,309 217,876 
Total$638,331 $598,992