v2.4.0.6

BORROWINGS - Additional Information (Detail) (USD $) |  |  | 6 Months Ended | 1 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2012 | Dec. 31, 2011 | Jun. 30, 2012 Revolving Credit Facility | Jul. 13, 2012 Subsequent Event Revolving Credit Facility Amended Credit Facility
Debt Instrument [Line Items] |  |  |  |
Credit facility maximum borrowing capacity |  |  | $ 1,020,000,000 | $ 1,100,000,000
Maturity date of credit facility |  |  | Apr. 08, 2016 | Jul. 13, 2017
Senior Secured Notes due to non-consolidated affiliates | 22,000,000 | 101,800,000 |  |
Subordinated Notes due to non-consolidated affiliates | 317,200,000 | 323,600,000 |  |
Fair value of Senior Secured notes | 10,500,000,000 | 7,400,000,000 |  |
Fair value of Subordinated notes | 701,600,000 | 630,200,000 |  |
Fair value of Senior Secured notes due to affiliates | 15,700,000 | 86,900,000 |  |
Fair value of Subordinated notes due to affiliates | 191,100,000 | 205,400,000 |  |
Fair value of the CLO assets | $ 12,500,000,000 | $ 8,700,000,000 |  |

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- Definition Fair Value Of The C L O Assets + References No definition available. + Details
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- Definition Fair Value Of Senior Secured Notes. + References No definition available. + Details
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Balance Type: | credit
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- Definition Fair Value Of Senior Secured Notes Due To Affiliates. + References No definition available. + Details
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- Definition Fair value of subordinated notes due to affiliates + References No definition available. + Details
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- Definition Senior Secured Notes Due to Non-consolidated Affiliates + References No definition available. + Details
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- Definition Subordinated Notes Due to Non-consolidated Affiliates + References No definition available. + Details
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Namespace Prefix: | bx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Balance Type: | na
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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