Commitments and Contingencies (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Changes in the Company's warranty liability
Balance at beginning of year		$ 56,682	$ 49,085	$ 45,196
Warranties issued		38,452	30,135	23,018
Payments	[1]	(25,336)	(23,190)	(26,367)
Adjustments	[2]	0	652	7,238
Balance at end of year		69,798	56,682	49,085
Self Insurance Reserve, Balance at beginning of year		158,584	173,011	205,228
Expenses Associated with Self Insurance	[3]	20,371	24,808	18,590
Payments, Net of Recoveries for Self Insurance		(9,720)	(28,395)	(21,201)
Self Insurance Reserve, Balance at end of year		177,695	158,584	173,011
Self Insurance [Member]
Loss Contingencies [Line Items]
Increase (Decrease) in Insurance Liabilities	[4]	$ 8,460	$ (10,840)	$ (29,606)

[1] Payments for 2016 and 2015 included $2.3 million and $8.4 million, respectively, to repair homes affected by water intrusion-related issues in certain of our communities in central and southwest Florida.

[2] Adjustments for 2016 and 2015 included the reclassification of certain estimated minimum probable recoveries to receivables in connection with the above-noted water intrusion-related issues. The adjustments for each year had no impact on our consolidated statements of operations.

[3] 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

[4] The amount for each period reflects changes in our self-insurance liability that were offset by changes in the receivable for estimated probable insurance and other recoveries to present our self-insurance liability on a gross basis. The amount for 2017 also includes a $21.7 million change in estimate to increase our self-insurance liability to reflect claim frequency and severity trends, which indicated that probable future payments for claims relating to homes delivered in certain prior years were likely to exceed the previously estimated liabilities remaining for those claims. Therefore, we recorded an adjustment in the 2017 third quarter to increase our self-insurance liability, based on an actuarially determined estimate, to an amount expected to have a higher probability of being adequate to cover future payments associated with unresolved claims, including claims incurred but not yet reported. This adjustment is included in selling, general and administrative expenses.