Multifamily Segment (Condensed Financial Information by Equity Method Investments) (Details) $ in Thousands	3 Months Ended
	Feb. 28, 2019 USD ($) property	Feb. 28, 2018 USD ($) property	Nov. 30, 2018 USD ($)
Liabilities and equity:
Equity in earnings (loss) from unconsolidated entities	$ (5,710)	$ (2,431)
Multifamily
Assets:
Cash and cash equivalents	37,533		$ 61,571
Operating properties and equipment	3,798,753		3,708,613
Other assets	43,746		40,899
Total assets	3,880,032		3,811,083
Liabilities and equity:
Accounts payable and other liabilities	186,555		199,119
Notes payable	1,449,294		1,381,656
Equity	2,244,183		2,230,308
Total liabilities and equity	3,880,032		3,811,083
Investment	485,140		481,129
Debt issuance cost	18,200		$ 15,700
Revenues	35,371	23,952
Costs and expenses	56,128	31,795
Other income (expense), net	21,400	7,307
Net loss of unconsolidated entities	643	(536)
Equity in earnings (loss) from unconsolidated entities	$ 10,581	$ 2,742
Number of operating properties sold | property	1	1
Gain on disposition of assets	$ 15,500	$ 4,100
Deferred development fees	$ 11,900