Multifamily Segment (Condensed Financial Information by Equity Method Investments) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2019 USD ($) property	Aug. 31, 2018 USD ($) property	Aug. 31, 2019 USD ($) property	Aug. 31, 2018 USD ($) property	Nov. 30, 2018 USD ($)
Liabilities and equity:
Equity in earnings (loss) from unconsolidated entities			$ 12,235	$ (8,115)
Multifamily
Assets:
Cash and cash equivalents	$ 28,260		28,260		$ 61,571
Operating properties and equipment/construction in progress	4,188,948		4,188,948		3,708,613
Other assets	57,298		57,298		40,899
Total assets	4,274,506		4,274,506		3,811,083
Liabilities and equity:
Accounts payable and other liabilities	200,850		200,850		199,119
Notes payable	1,731,702		1,731,702		1,381,656
Equity	2,341,954		2,341,954		2,230,308
Total liabilities and equity	4,274,506		4,274,506		3,811,083
Investment	539,697		539,697		481,129
Debt issuance cost	21,500		21,500		$ 15,700
Revenues	44,338	$ 31,907	118,318	82,980
Costs and expenses	64,423	47,235	175,636	122,512
Other income (expense), net	33,178	13,588	54,578	52,457
Net loss of unconsolidated entities	13,093	(1,740)	(2,740)	12,925
Equity in earnings (loss) from unconsolidated entities	$ 7,883	$ (1,730)	$ 15,446	$ 15,293
Number of operating properties sold | property	1	1	2	4
Gain on disposition of assets	$ 12,600	$ 1,700	$ 28,100	$ 23,300
Deferred development fees			$ 11,900