v2.4.1.9

Financial Data of Segments (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |
Total Management and Advisory Fees, Net | $ 603,498 us-gaap_InvestmentAdvisoryFees | $ 573,160 us-gaap_InvestmentAdvisoryFees |
Performance Fees Realized - Carried Interest | 1,206,425 bx_PerformanceFeesRealizedCarriedInterest | 333,623 bx_PerformanceFeesRealizedCarriedInterest |
Performance Fees Realized - Incentive Fees | 27,992 bx_PerformanceFeesRealizedIncentiveFees | 43,794 bx_PerformanceFeesRealizedIncentiveFees |
Performance Fees Unrealized - Carried Interest | 374,481 bx_PerformanceFeesUnrealizedCarriedInterest | 330,394 bx_PerformanceFeesUnrealizedCarriedInterest |
Performance Fees Unrealized - Incentive Fees | 61,860 bx_PerformanceFeesUnrealizedIncentiveFees | 64,233 bx_PerformanceFeesUnrealizedIncentiveFees |
Total Performance Fees | 1,670,758 us-gaap_PerformanceFees | 772,044 us-gaap_PerformanceFees |
Investment Income (Loss), Realized | 187,710 bx_InvestmentIncomeLossRealized | 153,026 bx_InvestmentIncomeLossRealized |
Investment Income (Loss), Unrealized | 15,771 bx_InvestmentIncomeLossUnrealized | 13,500 bx_InvestmentIncomeLossUnrealized |
Total Investment Income | 203,481 us-gaap_GainLossOnInvestments | 166,526 us-gaap_GainLossOnInvestments |
Interest and Dividend Revenue | 21,499 us-gaap_InvestmentIncomeInterestAndDividend | 14,069 us-gaap_InvestmentIncomeInterestAndDividend |
Other | (5,656)us-gaap_OtherIncome | 869 us-gaap_OtherIncome |
Total Revenues | 2,493,580 us-gaap_Revenues | 1,526,668 us-gaap_Revenues |
Compensation and Benefits Compensation | 559,559 us-gaap_SalariesAndWages | 485,351 us-gaap_SalariesAndWages |
Performance Fee Compensation - Realized Carried Interest | 292,248 bx_PerformanceFeeCompensationRealizedCarriedInterest | 149,398 bx_PerformanceFeeCompensationRealizedCarriedInterest |
Performance Fee Compensation - Realized Incentive Fees | 12,227 bx_PerformanceFeeCompensationRealizedIncentiveFees | 23,635 bx_PerformanceFeeCompensationRealizedIncentiveFees |
Performance Fee Compensation - Unrealized Carried Interest | 74,380 bx_PerformanceFeeCompensationUnrealizedCarriedInterest | 40,730 bx_PerformanceFeeCompensationUnrealizedCarriedInterest |
Performance Fee Compensation - Unrealized Incentive Fees | 24,961 bx_PerformanceFeeCompensationUnrealizedIncentiveFees | 23,531 bx_PerformanceFeeCompensationUnrealizedIncentiveFees |
Total Compensation and Benefits | 963,375 us-gaap_LaborAndRelatedExpense | 722,645 us-gaap_LaborAndRelatedExpense |
Total Expenses | 1,148,950 us-gaap_CostsAndExpenses | 887,851 us-gaap_CostsAndExpenses |
Economic Income (Loss) | 1,583,602 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 708,972 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
Segment Assets | 32,406,601 us-gaap_Assets | 30,028,545 us-gaap_Assets | 31,510,894 us-gaap_Assets
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Management and Advisory Fees, Base Management Fees | 516,397 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 476,878 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Management and Advisory Fees, Advisory Fees | 84,238 bx_AdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 69,963 bx_AdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Management and Advisory Fees, Transaction and Other Fees, Net | 37,073 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 59,910 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Management and Advisory Fees, Management Fee Offsets | (17,945)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | (16,644)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Total Management and Advisory Fees, Net | 619,763 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 590,107 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fees Realized - Carried Interest | 1,207,594 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 333,623 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fees Realized - Incentive Fees | 29,670 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 53,837 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fees Unrealized - Carried Interest | 373,852 bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 330,288 bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fees Unrealized - Incentive Fees | 62,620 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 61,266 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Total Performance Fees | 1,673,736 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 779,014 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Investment Income (Loss), Realized | 107,792 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 111,917 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Investment Income (Loss), Unrealized | 81,849 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 4,550 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Total Investment Income | 189,641 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 116,467 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Interest and Dividend Revenue | 30,451 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 22,362 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Other | (4,872)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 869 us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Total Revenues | 2,508,719 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 1,508,819 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Compensation and Benefits Compensation | 329,838 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 306,545 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fee Compensation - Realized Carried Interest | 292,248 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 149,398 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fee Compensation - Realized Incentive Fees | 12,227 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 23,635 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fee Compensation - Unrealized Carried Interest | 74,380 bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 40,690 bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Performance Fee Compensation - Unrealized Incentive Fees | 24,961 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 23,531 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Total Compensation and Benefits | 733,654 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 543,799 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Other Operating Expenses | 143,282 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 139,774 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Total Expenses | 876,936 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 683,573 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Economic Income (Loss) | 1,631,783 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 825,246 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Segment Assets | 19,638,712 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember | 16,458,341 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |
Operating Segments | Private Equity Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Management and Advisory Fees, Base Management Fees | 108,383 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 98,584 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Management and Advisory Fees, Transaction and Other Fees, Net | 20,359 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 42,847 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Management and Advisory Fees, Management Fee Offsets | (4,949)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | (1,713)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Total Management and Advisory Fees, Net | 123,793 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 139,718 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Performance Fees Realized - Carried Interest | 382,978 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 119,805 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Performance Fees Unrealized - Carried Interest | 566,822 bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 167,065 bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Total Performance Fees | 949,800 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 286,870 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Investment Income (Loss), Realized | 44,816 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 60,535 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Investment Income (Loss), Unrealized | 31,487 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | (9,033)bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Total Investment Income | 76,303 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 51,502 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Interest and Dividend Revenue | 7,617 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 5,228 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Other | (1,825)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 864 us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Total Revenues | 1,155,688 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 484,182 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Compensation and Benefits Compensation | 70,089 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 73,307 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Performance Fee Compensation - Realized Carried Interest | 39,482 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 85,771 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Performance Fee Compensation - Unrealized Carried Interest | 178,120 bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | (27,148)bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Total Compensation and Benefits | 287,691 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 131,930 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Other Operating Expenses | 38,755 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 33,006 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Total Expenses | 326,446 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 164,936 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Economic Income (Loss) | 829,242 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember | 319,246 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |
Segment Assets | 6,754,805 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_PrivateEquitySegmentMember |  |
Operating Segments | Real Estate Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Management and Advisory Fees, Base Management Fees | 152,348 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 159,336 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Management and Advisory Fees, Transaction and Other Fees, Net | 15,216 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 13,564 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Management and Advisory Fees, Management Fee Offsets | (4,866)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | (9,224)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Total Management and Advisory Fees, Net | 162,698 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 163,676 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fees Realized - Carried Interest | 811,249 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 194,658 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fees Realized - Incentive Fees | 723 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | (26)bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fees Unrealized - Carried Interest | (181,019)bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 140,237 bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fees Unrealized - Incentive Fees | 6,069 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 2,737 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Total Performance Fees | 637,022 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 337,606 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Investment Income (Loss), Realized | 71,344 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 31,357 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Investment Income (Loss), Unrealized | 37,510 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 5,379 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Total Investment Income | 108,854 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 36,736 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Interest and Dividend Revenue | 9,997 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 6,110 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Other | (3,977)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 317 us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Total Revenues | 914,594 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 544,445 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Compensation and Benefits Compensation | 84,834 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 80,233 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fee Compensation - Realized Carried Interest | 246,496 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 51,833 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fee Compensation - Realized Incentive Fees | 356 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | (16)bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fee Compensation - Unrealized Carried Interest | (98,084)bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 56,985 bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Performance Fee Compensation - Unrealized Incentive Fees | 2,575 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 1,382 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Total Compensation and Benefits | 236,177 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 190,417 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Other Operating Expenses | 40,143 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 33,107 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Total Expenses | 276,320 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 223,524 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Economic Income (Loss) | 638,274 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember | 320,921 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |
Segment Assets | 7,916,836 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_RealEstateSegmentMember |  |
Operating Segments | Hedge Fund Solutions Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Management and Advisory Fees, Base Management Fees | 130,637 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 113,384 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Management and Advisory Fees, Transaction and Other Fees, Net | 25 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 93 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Management and Advisory Fees, Management Fee Offsets | (280)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | (1,455)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Total Management and Advisory Fees, Net | 130,382 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 112,022 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Performance Fees Realized - Incentive Fees | 10,516 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 39,845 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Performance Fees Unrealized - Incentive Fees | 47,427 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 18,085 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Total Performance Fees | 57,943 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 57,930 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Investment Income (Loss), Realized | (10,375)bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 16,820 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Investment Income (Loss), Unrealized | 4,483 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 4,431 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Total Investment Income | (5,892)us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 21,251 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Interest and Dividend Revenue | 3,949 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 2,661 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Other | (1,607)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 122 us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Total Revenues | 184,775 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 193,986 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Compensation and Benefits Compensation | 56,104 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 40,571 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Performance Fee Compensation - Realized Incentive Fees | 3,470 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 13,271 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Performance Fee Compensation - Unrealized Incentive Fees | 15,651 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 6,761 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Total Compensation and Benefits | 75,225 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 60,603 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Other Operating Expenses | 21,206 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 19,480 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Total Expenses | 96,431 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 80,083 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Economic Income (Loss) | 88,344 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember | 113,903 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |
Segment Assets | 1,533,776 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_HedgeFundSolutionsSegmentMember |  |
Operating Segments | Credit Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Management and Advisory Fees, Base Management Fees | 125,029 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 105,574 us-gaap_ManagementFeesBaseRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Management and Advisory Fees, Transaction and Other Fees, Net | 1,457 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 3,344 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Management and Advisory Fees, Management Fee Offsets | (7,850)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | (4,252)bx_ManagementFeeOffsets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Total Management and Advisory Fees, Net | 118,636 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 104,666 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fees Realized - Carried Interest | 13,367 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 19,160 bx_PerformanceFeesRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fees Realized - Incentive Fees | 18,431 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 14,018 bx_PerformanceFeesRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fees Unrealized - Carried Interest | (11,951)bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 22,986 bx_PerformanceFeesUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fees Unrealized - Incentive Fees | 9,124 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 40,444 bx_PerformanceFeesUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Total Performance Fees | 28,971 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 96,608 us-gaap_PerformanceFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Investment Income (Loss), Realized | 2,237 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 3,071 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Investment Income (Loss), Unrealized | 6,887 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 3,079 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Total Investment Income | 9,124 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 6,150 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Interest and Dividend Revenue | 5,651 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 5,861 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Other | 3,493 us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | (259)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Total Revenues | 165,875 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 213,026 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Compensation and Benefits Compensation | 49,877 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 50,752 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fee Compensation - Realized Carried Interest | 6,270 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 11,794 bx_PerformanceFeeCompensationRealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fee Compensation - Realized Incentive Fees | 8,401 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 10,380 bx_PerformanceFeeCompensationRealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fee Compensation - Unrealized Carried Interest | (5,656)bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 10,853 bx_PerformanceFeeCompensationUnrealizedCarriedInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Performance Fee Compensation - Unrealized Incentive Fees | 6,735 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 15,388 bx_PerformanceFeeCompensationUnrealizedIncentiveFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Total Compensation and Benefits | 65,627 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 99,167 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Other Operating Expenses | 21,836 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 32,839 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Total Expenses | 87,463 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 132,006 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Economic Income (Loss) | 78,412 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember | 81,020 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |
Segment Assets | 2,563,449 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_CreditSegmentMember |  |
Operating Segments | Financial Advisory Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Management and Advisory Fees, Advisory Fees | 84,238 bx_AdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 69,963 bx_AdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Management and Advisory Fees, Transaction and Other Fees, Net | 16 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 62 bx_TransactionAndOtherFeesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Total Management and Advisory Fees, Net | 84,254 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 70,025 us-gaap_InvestmentAdvisoryFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Investment Income (Loss), Realized | (230)bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 134 bx_InvestmentIncomeLossRealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Investment Income (Loss), Unrealized | 1,482 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 694 bx_InvestmentIncomeLossUnrealized / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Total Investment Income | 1,252 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 828 us-gaap_GainLossOnInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Interest and Dividend Revenue | 3,237 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 2,502 us-gaap_InvestmentIncomeInterestAndDividend / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Other | (956)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | (175)us-gaap_OtherIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Total Revenues | 87,787 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 73,180 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Compensation and Benefits Compensation | 68,934 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 61,682 us-gaap_SalariesAndWages / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Total Compensation and Benefits | 68,934 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 61,682 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Other Operating Expenses | 21,342 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 21,342 us-gaap_OtherCostAndExpenseOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Total Expenses | 90,276 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | 83,024 us-gaap_CostsAndExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Economic Income (Loss) | (2,489)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember | (9,844)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |
Segment Assets | $ 869,846 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = bx_FinancialAdvisorySegmentMember |  |

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- Definition Investment Income (Loss) Realized represents the gains and losses on the Partnership's principal investments, including its investments in Funds that are not consolidated, its equity method investments, and other principal investments. Investment Income (Loss) is realized when the Partnership redeems all or a portion of its investment or when the Partnership receives cash income, such as dividends or distributions, from its non-consolidated funds. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -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 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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- Definition This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments (OTTI) of the subject investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(c),9(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (c)-(e) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
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