Financial instruments.

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- Definition

Investments at fair value that cannot be redeemed at reporting date and are subject to a lock up period.

+ Details

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Period Type:	instant

- Definition

Period for liquidation.

+ Details

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- Definition

Investments at fair value that cannot be redeemed at reporting date are in liquidation and are expected to be liquidated over time.

+ Details

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Period Type:	instant

- Definition

Investments at fair value that cannot be redeemed at reporting date and are subject to a prior written redemption request.

+ Details

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- Definition

% of fair value in liquidation, however unable to estimate when the underlying assets will be fully liquidated.

+ Details

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- Definition

Expected to liquidate in one to eleven years.

+ Details

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- Definition

Investments redeemable within 60-90 days

+ Details

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Period Type:	instant

- Definition

Transfers into liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Transfers out of liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Transfers into assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Transfers out of assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The fair value as of the balance sheet date of firm holdings in private equity, mezzanine, venture capital, merchant banking, real estate and special situations investments. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6475986&loc=d3e42546-110969

+ Details

Name:	us-gaap_FinancialInstrumentsOwnedPrincipalInvestmentsAtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount of financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)
-SubTopic 30
-Topic 860
-URI http://asc.fasb.org/extlink&oid=6862952&loc=SL6224234-111729

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS140-4/FIN46(R)-8
-Paragraph B12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Financial Instruments (Details Textuals) (USD $)	3 Months Ended		8 Months Ended	9 Months Ended
Financial Instruments (Details Textuals) (USD $)	Aug. 31, 2011	Aug. 31, 2010	Aug. 31, 2010	Aug. 31, 2011	Nov. 30, 2010
Financial Instruments (Textuals) [Abstract]
Secured financings included in other liabilities	$ 0			$ 0	$ 85,700,000
Transfers of assets from Level 2 to Level 3	120,400,000	30,400,000	35,000,000	54,700,000
Transfers of assets from Level 3 to Level 2	152,400,000	4,200,000	183,500,000	81,800,000
Transfers of liabilities from Level 2 to Level 3	0		100,000	0
Transfers of liabilities from Level 3 to Level 2	10,000		113,300,000	0
Net gains/losses on Level 3 assets (realized and unrealized)	19,200,000	9,400,000	57,900,000	17,400,000
Net gains/losses on Level 3 liabilities (realized and unrealized)	500,000	800,000	6,100,000	900,000
Percentage of Irredeemable Investments	2.00%			2.00%	3.00%
Percentage of Irredeemable Investments until the lock-up period expires					30.00%
Percentage of Redeemable Investments	98.00%			98.00%	67.00%
Notice period redemption of investments prior written notice period				30-90 days
Investments, at fair value	116,833,000			116,833,000	77,784,000
Private Equity Funds [Member]
Financial Instruments (Textuals) [Abstract]
Percentage of Irredeemable Investments	95.00%			95.00%	41.00%
Percentage of Redeemable Investments	5.00%			5.00%	59.00%
Percentage of investments at fair value expected to liquidate	81.00%			81.00%	74.00%
Percentage of investments at fair value currently in liquidation	0.00%			0.00%	0.00%
Investments Period Estimated To Be Liquidated				One to ten years
Croatian and Vietnamese companies [Member]
Financial Instruments (Textuals) [Abstract]
Percentage of investments at fair value expected to liquidate	19.00%			19.00%	26.00%
Investments Which are Not Investment Companies [Member]
Financial Instruments (Textuals) [Abstract]
Investments, at fair value	$ 51,900,000			$ 51,900,000	$ 26,900,000
Funds of Funds [Member]
Financial Instruments (Textuals) [Abstract]
Investments Period Estimated To Be Liquidated				one to three years
Equity Long/Short Hedge Funds [Member]
Financial Instruments (Textuals) [Abstract]
Investments Period Estimated To Be Liquidated				one to two years