XML 106 R75.htm IDEA: XBRL DOCUMENT v3.19.2

Carrying Value and Fair Value of Blackstone Issued Notes (Detail) - USD ($) $ in Thousands		Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Carrying Value		$ 4,139,917	$ 3,471,151
Debt instrument, fair value	[1]	4,458,190	3,496,056
5.875% Notes
Debt Instrument [Line Items]
Carrying Value		399,174	398,947
Debt instrument, fair value	[1]	422,160	421,720
4.750% Notes
Debt Instrument [Line Items]
Carrying Value		395,700	395,166
Debt instrument, fair value	[1]	429,440	417,600
2.000% Notes
Debt Instrument [Line Items]
Carrying Value		336,883	339,959
Debt instrument, fair value	[1]	367,462	352,197
1.000% Notes
Debt Instrument [Line Items]
Carrying Value		673,113	679,193
Debt instrument, fair value	[1]	687,293	647,564
3.150% Notes
Debt Instrument [Line Items]
Carrying Value		296,880	296,717
Debt instrument, fair value	[1]	297,630	285,030
1.500% Notes
Debt Instrument [Line Items]
Carrying Value		676,634
Debt instrument, fair value	[1]	705,990
6.250% Notes
Debt Instrument [Line Items]
Carrying Value		238,328	238,221
Debt instrument, fair value	[1]	314,725	289,225
5.000% Notes
Debt Instrument [Line Items]
Carrying Value		488,856	488,747
Debt instrument, fair value	[1]	568,500	490,150
4.450% Notes
Debt Instrument [Line Items]
Carrying Value		344,097	344,038
Debt instrument, fair value	[1]	370,300	329,770
4.000% Notes
Debt Instrument [Line Items]
Carrying Value		290,252	290,163
Debt instrument, fair value	[1]	$ 294,690	$ 262,800
[1] Fair value is determined by broker quote and these notes would be classified as Level II within the fair value hierarchy.

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

X

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_FivePointEightSevenFivePercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_FourPointSevenFiveZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_TwoPointZeroZeroZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_OnePointZeroZeroZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_ThreePointOneFiveZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_OnePointFiveZeroZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_SixPointTwoFiveZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_FivePointZeroZeroZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_FourPointFourFiveZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bx_FourPointZeroZeroZeroPercentNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: