Commitments and Contingencies (Changes in the Warranty and Self-Insurance Liability) (Details) - USD ($) $ in Thousands		3 Months Ended
		Feb. 29, 2020	Feb. 28, 2019
Changes in the Warranty Liability
Balance at beginning of period		$ 88,839	$ 82,490
Warranties issued		8,363	6,294
Payments		(6,989)	(4,593)
Balance at end of period		90,213	84,191
Movement In Self Insurance Reserve [Roll Forward]
Balance at beginning of period		177,765	176,841
Self-insurance expense	[1]	4,634	3,747
Payments	[2]	(918)	(2,726)
Balance at end of period		$ 181,481	$ 177,862

[1] (a) These expenses are included in selling, general and administrative expenses and are largely offset by contributions from subcontractors participating in the wrap-up policy.

[2] (b) 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.