Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(22))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(24))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_MinorityInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Noncontrolling Interests (Detail) - USD ($)	Dec. 01, 2015	Aug. 31, 2016	Nov. 30, 2015
Noncontrolling Interest [Line Items]
Noncontrolling interests		$ 5,190,000	$ 27,468,000
Gain (loss) recognized upon deconsolidation	$ 0
Global Equity Event Opportunity Fund LLC [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests		4,547,000	26,292,000
Other [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests		$ 643,000	1,176,000
Leucadia [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests			$ 26,300,000