Commitments and Contingencies (Changes in Warranty Liability) (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
Changes in the Company's warranty liability
Balance at beginning of year		$ 69,798	$ 56,682	$ 49,085
Warranties issued		37,792	38,452	30,135
Payments	[1]	(23,300)	(25,336)	(23,190)
Adjustments		(1,800)	0	652
Balance at end of year		82,490	69,798	56,682
Self Insurance Reserve, Balance at beginning of year		177,695	158,584	173,011
Expenses Associated with Self Insurance	[2]	20,436	20,371	24,808
Payments, Net of Recoveries for Self Insurance	[3]	(21,290)	(22,933)	(39,235)
Self Insurance Reserve, Balance at end of year		176,841	177,695	158,584
Self Insurance [Member]
Loss Contingencies [Line Items]
Increase (Decrease) in Insurance Liabilities	[4]	$ 0	$ 21,673	$ 0

[1] Payments for 2016 included $2.3 million to repair homes affected by water intrusion-related issues in certain of our communities in central and southwest Florida.

[2] These expenses are included in selling, general and administrative expenses and are largely offset by contributions from independent subcontractors participating in the wrap-up policy

[3] Includes net changes in estimated probable insurance and other recoveries, which are recorded in receivables, to present our self-insurance liability on a gross basis.

[4] The amount for 2017 reflected a change in estimate to increase our self-insurance liability based on an actuarially determined estimate that we believed had a higher probability of being adequate to cover future payments associated with unresolved claims, including claims incurred but not yet reported. This adjustment was included in selling, general and administrative expenses.