Commitments and Contingencies Commitments and Contingencies (Details Textual 3) $ in Millions	Oct. 31, 2021 USD ($) luxury_homes
Backlog Information [Abstract]
Number of homes to be delivered | luxury_homes	10,302
Aggregate sales value of outstanding homes to be delivered	$ 9,500.0
May 2016 Revolving Credit Facility [Member]
Loss Contingencies [Line Items]
Letters of credit outstanding, amount	94.5
Surety Bond Construction Improvements [Member]
Loss Contingencies [Line Items]
Outstanding surety bonds, amount	820.7
Amount of work remains on improvements in the Company's various communities	386.2
Surety Bond Other Obligations [Member]
Loss Contingencies [Line Items]
Additional outstanding surety bonds	236.0
Financial Guarantee
Loss Contingencies [Line Items]
Outstanding surety bonds, amount	$ 25.2