Income Taxes (Deferred Tax Assets, Net) (Details) - USD ($) $ in Thousands	Nov. 30, 2019	Nov. 30, 2018
Deferred tax liabilities
Capitalized expenses	$ 43,818	$ 51,660
State taxes	26,290	31,246
Other	4,132	225
Total	74,240	83,131
Deferred tax assets:
NOLs from 2006 through 2018	95,562	121,432
Tax credits	180,737	231,100
Inventory impairment and land option contract abandonment charges	48,862	67,416
Employee benefits	53,294	45,802
Warranty, legal and other accruals	40,954	43,213
Capitalized expenses	25,116	27,894
Partnerships and joint ventures	9,990	6,368
Depreciation and amortization	479	1,869
Other	2,939	3,457
Total	457,933	548,551
Valuation allowance	(19,200)	(23,600)
Total	438,733	524,951
Deferred Tax Assets, Net	$ 364,493	$ 441,820