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Commitments and Contingencies (Tables)
 6 Months Ended
Apr. 30, 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):
April 30, 2021October 31, 2020
Aggregate purchase commitments:
Unrelated parties$3,275,903 $2,630,128 
Unconsolidated entities that the Company has investments in8,179 10,097 
Total$3,284,082 $2,640,225 
Deposits against aggregate purchase commitments$220,950 $223,571 
Additional cash required to acquire land3,063,132 2,416,654 
Total
$3,284,082 $2,640,225 
Amount of additional cash required to acquire land included in accrued expenses$16,178 $19,590 
Company mortgage commitments
Information regarding our mortgage commitments, as of the dates indicated, is provided in the table below (amounts in thousands):
April 30,
2021		October 31, 2020
Aggregate mortgage loan commitments:
IRLCs$711,264 $381,116 
Non-IRLCs2,570,701 1,688,801 
Total$3,281,965 $2,069,917 
Investor commitments to purchase:
IRLCs$711,264 $381,116 
Mortgage loans held for sale199,160 217,876 
Total$910,424 $598,992