Multifamily Segment (Condensed Financial Information by Equity Method Investments) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2019 USD ($)	May 31, 2018 USD ($) property	May 31, 2019 USD ($) property	May 31, 2018 USD ($) property	Nov. 30, 2018 USD ($)
Liabilities and equity:
Equity in earnings (loss) from unconsolidated entities			$ (5,908)	$ (3,740)
Multifamily
Assets:
Cash and cash equivalents	$ 28,217		28,217		$ 61,571
Operating properties and equipment	4,063,560		4,063,560		3,708,613
Other assets	50,227		50,227		40,899
Total assets	4,142,004		4,142,004		3,811,083
Liabilities and equity:
Accounts payable and other liabilities	190,785		190,785		199,119
Notes payable	1,596,850		1,596,850		1,381,656
Equity	2,354,369		2,354,369		2,230,308
Total liabilities and equity	4,142,004		4,142,004		3,811,083
Investment	510,223		510,223		481,129
Debt issuance cost	21,000		21,000		$ 15,700
Revenues	38,609	$ 27,121	73,980	51,073
Costs and expenses	55,085	43,482	111,213	75,277
Other income (expense), net	0	31,562	21,400	38,869
Net earnings of unconsolidated entities	(16,476)	15,201	(15,833)	14,665
Equity in earnings (loss) from unconsolidated entities	$ (3,018)	$ 14,281	$ 7,563	$ 17,023
Number of operating properties sold | property		2	1	3
Gain on disposition of assets		$ 17,400	$ 15,500	$ 21,500
Deferred development fees			$ 11,900