Investment in Unconsolidated Affiliates - Partnerships Investments Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Activity of Investments in Unconsolidated Affiliates [Roll Forward]
Balance at the beginning of the period	$ 785,832	$ 348,588	$ 475,078	$ 352,070
Investments in its unconsolidated affiliates during the period	0	0	330,087	0
Equity in earnings in unconsolidated affiliates	23,322	8,075	33,287	13,504
Distributions from unconsolidated affiliates	(17,169)	(6,872)	(46,467)	(15,783)
Balance at the end of the period	$ 791,985	$ 349,791	$ 791,985	$ 349,791