Supplemental Financial Information (Condensed Consolidating Statement Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Condensed Financial Statements, Captions [Line Items]
Total revenues	$ 1,993,664	$ 1,644,139
Corporate general and administrative	47,668	43,654
Total costs and expenses	1,814,825	1,500,871
Equity in earnings (loss) from unconsolidated entities	24,183	31,385
Other interest expense	(1,157)	(4,071)
Earnings (loss) before income taxes	201,693	176,643
Provision (benefit) for income taxes	(56,241)	(59,726)
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)	145,452	116,917
Less: Net earnings (loss) attributable to noncontrolling interests	1,372	1,954
Net earnings attributable to Lennar	144,080	114,963
Net unrealized gain (loss) on securities available-for-sale	(437)	200
Comprehensive income (loss), net of tax, attributable to Lennar	143,643	115,163
Comprehensive income (loss), net of tax, attributable to noncontrolling interests	1,372	1,954
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Corporate general and administrative	46,148	42,389
Total costs and expenses	46,148	42,389
Other interest expense	(1,444)	(1,429)
Earnings (loss) before income taxes	(46,422)	(43,587)
Provision (benefit) for income taxes	13,035	14,902
Equity in income (loss) from subsidiaries	177,467	143,648
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)	144,080	114,963
Net earnings attributable to Lennar	$ 144,080	114,963
Net unrealized gain (loss) on securities available-for-sale		0
Comprehensive income (loss), net of tax, attributable to Lennar	$ 144,080	114,963
Comprehensive income (loss), net of tax, attributable to noncontrolling interests	0	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Total revenues	1,827,091	1,479,807
Corporate general and administrative	255
Total costs and expenses	1,598,233	1,303,015
Other interest expense	(1,157)	(4,071)
Earnings (loss) before income taxes	223,034	200,869
Provision (benefit) for income taxes	(61,710)	(67,471)
Equity in income (loss) from subsidiaries	4,538	8,825
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)	165,862	142,223
Net earnings attributable to Lennar	$ 165,862	142,223
Net unrealized gain (loss) on securities available-for-sale		0
Comprehensive income (loss), net of tax, attributable to Lennar	$ 165,862	142,223
Comprehensive income (loss), net of tax, attributable to noncontrolling interests	0	0
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Total revenues	171,582	169,313
Total costs and expenses	175,169	159,241
Earnings (loss) before income taxes	25,081	19,361
Provision (benefit) for income taxes	(7,566)	(7,157)
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)	17,515	12,204
Less: Net earnings (loss) attributable to noncontrolling interests	1,372	1,954
Net earnings attributable to Lennar	16,143	10,250
Net unrealized gain (loss) on securities available-for-sale	(437)	200
Comprehensive income (loss), net of tax, attributable to Lennar	15,706	10,450
Comprehensive income (loss), net of tax, attributable to noncontrolling interests	1,372	1,954
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Total revenues	(5,009)	(4,981)
Corporate general and administrative	1,265	1,265
Total costs and expenses	(4,725)	(3,774)
Other interest expense	1,444	1,429
Equity in income (loss) from subsidiaries	(182,005)	(152,473)
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)	(182,005)	(152,473)
Net earnings attributable to Lennar	$ (182,005)	(152,473)
Net unrealized gain (loss) on securities available-for-sale		0
Comprehensive income (loss), net of tax, attributable to Lennar	$ (182,005)	(152,473)
Comprehensive income (loss), net of tax, attributable to noncontrolling interests	0	0
Lennar Homebuilding [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	1,786,481	1,441,658
Real estate cost and expenses	1,568,205	1,265,175
Equity in earnings (loss) from unconsolidated entities	3,000	28,899
Other income (expense), net	519	6,333
Lennar Homebuilding [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Other income (expense), net	1,170	231
Lennar Homebuilding [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	1,786,481	1,441,658
Real estate cost and expenses	1,556,166	1,264,789
Equity in earnings (loss) from unconsolidated entities	3,849	22,374
Other income (expense), net	(8,516)	5,774
Lennar Homebuilding [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	0	0
Real estate cost and expenses	14,863	5,223
Equity in earnings (loss) from unconsolidated entities	(849)	6,525
Other income (expense), net	9,025	550
Lennar Homebuilding [Member] | Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate cost and expenses	(2,824)	(4,837)
Other income (expense), net	(1,160)	(222)
Lennar Financial Services [Member]
Condensed Financial Statements, Captions [Line Items]
Financial Services, Revenues	123,956	124,827
Lennar Financial Services, Cost and expenses	109,025	109,300
Lennar Financial Services [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Financial Services, Revenues	40,610	38,149
Lennar Financial Services, Cost and expenses	41,812	38,226
Lennar Financial Services [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Financial Services, Revenues	88,342	91,659
Lennar Financial Services, Cost and expenses	70,069	71,276
Lennar Financial Services [Member] | Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Financial Services, Revenues	(4,996)	(4,981)
Lennar Financial Services, Cost and expenses	(2,856)	(202)
Rialto [Member]
Condensed Financial Statements, Captions [Line Items]
Rialto, Revenues	43,711	41,197
Rialto, Cost and expenses	42,907	40,781
Equity in earnings (loss) from unconsolidated entities	1,497	2,664
Other income (expense), net	(691)	(272)
Less: Net earnings (loss) attributable to noncontrolling interests	(339)	(1,814)
Rialto [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Rialto, Cost and expenses	0
Rialto [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Rialto, Revenues	43,711	41,197
Rialto, Cost and expenses	43,217	40,781
Equity in earnings (loss) from unconsolidated entities	1,497	2,664
Other income (expense), net	(691)	$ (272)
Rialto [Member] | Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Rialto, Cost and expenses	$ (310)
Other income (expense), net
Lennar Multifamily [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	$ 39,516	$ 36,457
Real estate cost and expenses	47,020	41,961
Equity in earnings (loss) from unconsolidated entities	19,686	(178)
Lennar Multifamily [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	0	0
Real estate cost and expenses	0	0
Equity in earnings (loss) from unconsolidated entities	0	0
Lennar Multifamily [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	0	0
Real estate cost and expenses	0	0
Equity in earnings (loss) from unconsolidated entities	0	0
Lennar Multifamily [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	39,529	36,457
Real estate cost and expenses	47,020	41,961
Equity in earnings (loss) from unconsolidated entities	19,686	(178)
Lennar Multifamily [Member] | Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Real estate revenues	(13)	0
Real estate cost and expenses	0	0
Equity in earnings (loss) from unconsolidated entities	$ 0	$ 0