|
Summary of Quantitative Inputs and Assumptions for Items Categorized in Level III of Fair Value Hierarchy (Detail) (USD $)
In Thousands, unless otherwise specified |
9 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Sep. 30, 2013
|
Dec. 31, 2012
|
|||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | $ 9,124,473 | $ 11,281,064 | ||||
| Fair value liabilities | 9,246,887 | 11,541,607 | ||||
|
Discounted Cash Flows | Collateralized Loan Obligations
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Recovery Lag | 12 months | 12 months | ||||
|
Discounted Cash Flows | Collateralized Loan Obligations | LIBOR
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Reinvestment Rate | 4.00% | 4.00% | ||||
|
Discounted Cash Flows | Collateralized Loan Obligations | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 2.70% | [1] | 3.90% | [1] | ||
| Pre-payment Rate | 19.00% | [1] | 18.00% | [1] | ||
| Recovery Rate | 66.00% | [1] | 66.00% | [1] | ||
| Default Rate | 2.10% | [1] | 2.10% | [1] | ||
|
Discounted Cash Flows | Collateralized Loan Obligations | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 0.20% | 1.10% | ||||
| Pre-payment Rate | 5.00% | 5.00% | ||||
| Recovery Rate | 30.00% | 30.00% | ||||
| Default Rate | 2.00% | 2.00% | ||||
|
Discounted Cash Flows | Collateralized Loan Obligations | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 44.90% | 50.00% | ||||
| Pre-payment Rate | 40.00% | 20.00% | ||||
| Recovery Rate | 70.00% | 70.00% | ||||
| Default Rate | 3.00% | 5.00% | ||||
|
Level 3
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 3,281,459 | 3,076,466 | ||||
|
Level 3 | Discounted Cash Flows | Collateralized Loan Obligations
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value liabilities | 9,246,887 | 11,541,607 | ||||
|
Blackstone's Treasury Cash Management Strategies | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 12.00% | |||||
| Pre-payment Rate | 20.00% | 20.00% | ||||
| Recovery Lag | 12 months | 12 months | ||||
| Recovery Rate | 70.00% | |||||
| Default Rate | 2.00% | 2.00% | ||||
|
Blackstone's Treasury Cash Management Strategies | Discounted Cash Flows | LIBOR
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Reinvestment Rate | 4.00% | 4.00% | ||||
|
Blackstone's Treasury Cash Management Strategies | Discounted Cash Flows | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 6.40% | [1] | ||||
| Recovery Rate | 66.00% | [1] | ||||
|
Blackstone's Treasury Cash Management Strategies | Discounted Cash Flows | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 5.80% | |||||
| Recovery Rate | 30.00% | |||||
|
Blackstone's Treasury Cash Management Strategies | Discounted Cash Flows | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 7.30% | |||||
| Recovery Rate | 70.00% | |||||
|
Blackstone's Treasury Cash Management Strategies | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 16,855 | 1,006 | ||||
|
Blackstone's Treasury Cash Management Strategies | Level 3 | Net Asset Value Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 9,819 | |||||
|
Blackstone's Treasury Cash Management Strategies | Level 3 | Transaction Price Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 200 | |||||
|
Blackstone's Treasury Cash Management Strategies | Level 3 | Third Party Pricing Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 19,386 | |||||
|
Loans And Receivables | Discounted Cash Flows | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 12.40% | [1] | 13.70% | [1] | ||
|
Loans And Receivables | Discounted Cash Flows | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 12.00% | 11.80% | ||||
|
Loans And Receivables | Discounted Cash Flows | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 13.00% | 25.90% | ||||
|
Loans And Receivables | Market Comparable Companies
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 8.7 | |||||
|
Loans And Receivables | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 98,077 | 30,620 | ||||
|
Loans And Receivables | Level 3 | Market Comparable Companies
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 43 | |||||
|
Other | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 12.50% | 12.50% | ||||
|
Other | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 3,627 | 5,647 | ||||
|
Other | Level 3 | Net Asset Value Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 3,738 | 17,901 | ||||
|
Other | Level 3 | Transaction Price Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 7,898 | 3,350 | ||||
|
Investments Of Consolidated Blackstone Funds | Level 3
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 3,122,059 | 3,017,699 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Discounted Cash Flows | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 11.00% | [1] | 11.20% | [1] | ||
| Revenue CAGR | 6.00% | [1] | 5.60% | [1] | ||
| Exit Multiple - EBITDA | 9.6 | [1] | 9.2 | [1] | ||
| Exit Multiple - P/E | 10.1 | [1] | 10.1 | [1] | ||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Discounted Cash Flows | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 8.10% | 8.40% | ||||
| Revenue CAGR | 0.90% | 0.70% | ||||
| Exit Multiple - EBITDA | 5.0 | 5.8 | ||||
| Exit Multiple - P/E | 8.5 | 8.5 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Discounted Cash Flows | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 25.00% | 25.10% | ||||
| Revenue CAGR | 43.40% | 83.40% | ||||
| Exit Multiple - EBITDA | 13 | 11.5 | ||||
| Exit Multiple - P/E | 19.0 | 17.0 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Market Comparable Companies
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Book Value Multiple | 0.9 | |||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Market Comparable Companies | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 7.3 | [1] | 7.8 | [1] | ||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Market Comparable Companies | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 7.2 | 5.0 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Market Comparable Companies | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 7.8 | 8.7 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 166,586 | 151,899 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Level 3 | Market Comparable Companies
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 265 | 1,602 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Level 3 | Transaction Price Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 76,633 | 61,479 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Level 3 | Third Party Pricing Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 58 | 200 | ||||
|
Investments Of Consolidated Blackstone Funds | Consolidated Equity Securities | Level 3 | Other
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 2,947 | 1,880 | ||||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Discounted Cash Flows | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 8.90% | [1] | 8.90% | [1] | ||
| Revenue CAGR | 5.50% | [1] | 5.30% | [1] | ||
| Exit Multiple - EBITDA | 9.9 | [1] | 10.0 | [1] | ||
| Exit Capitalization Rate | 7.00% | [1] | 7.00% | [1] | ||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Discounted Cash Flows | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 5.00% | 5.30% | ||||
| Revenue CAGR | (0.50%) | (8.20%) | ||||
| Exit Multiple - EBITDA | 3.0 | 4.5 | ||||
| Exit Capitalization Rate | 4.30% | 1.00% | ||||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Discounted Cash Flows | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 22.50% | 22.60% | ||||
| Revenue CAGR | 39.30% | 62.00% | ||||
| Exit Multiple - EBITDA | 23.3 | 15.4 | ||||
| Exit Capitalization Rate | 10.50% | 10.50% | ||||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 635,164 | 562,678 | ||||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Level 3 | Transaction Price Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 8,419 | 13,316 | ||||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Level 3 | Third Party Pricing Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 7,919 | 5,157 | ||||
|
Investments Of Consolidated Blackstone Funds | Partnership And LLC Interests | Level 3 | Other
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 928 | |||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Pre-payment Rate | 20.00% | 20.00% | ||||
| Recovery Lag | 12 months | 12 months | ||||
| Recovery Rate | 66.00% | 70.00% | ||||
| Default Rate | 2.00% | 2.00% | ||||
| Exit Multiple - EBITDA | 9.5 | |||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Discounted Cash Flows | LIBOR
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Reinvestment Rate | 4.00% | 4.00% | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Discounted Cash Flows | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 16.50% | [1] | 15.60% | [1] | ||
| Revenue CAGR | 2.50% | [1] | 3.80% | [1] | ||
| Default Rate | 6.90% | [1] | ||||
| Exit Multiple - EBITDA | 10.6 | [1] | ||||
| Exit Capitalization Rate | 7.10% | [1] | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Discounted Cash Flows | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 8.40% | 7.80% | ||||
| Revenue CAGR | 1.60% | 2.90% | ||||
| Exit Multiple - EBITDA | 5.8 | |||||
| Exit Capitalization Rate | 6.80% | 7.00% | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Discounted Cash Flows | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 20.00% | 42.00% | ||||
| Revenue CAGR | 3.70% | 5.10% | ||||
| Exit Multiple - EBITDA | 11.5 | |||||
| Exit Capitalization Rate | 7.50% | 7.50% | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Market Comparable Companies | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 6.3 | [1] | 6.7 | [1] | ||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Market Comparable Companies | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 6.3 | 6.5 | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Market Comparable Companies | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 7.9 | 7.5 | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 14,328 | 13,056 | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Level 3 | Market Comparable Companies
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 278 | 664 | ||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Level 3 | Transaction Price Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 528 | |||||
|
Investments Of Consolidated Blackstone Funds | Debt Instruments | Level 3 | Third Party Pricing Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 44,397 | 4,004 | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Revenue CAGR | 5.60% | |||||
| Exit Multiple - EBITDA | 7.0 | |||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Discounted Cash Flows | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 7.30% | [1] | 9.30% | [1] | ||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Discounted Cash Flows | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 7.00% | 7.00% | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Discounted Cash Flows | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Discount Rate | 13.00% | 15.70% | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Market Comparable Companies | Weighted Average
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 6.9 | [1] | 6.5 | [1] | ||
| Liquidity Discount | 8.40% | [1] | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Market Comparable Companies | Minimum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 2.0 | 2.0 | ||||
| Liquidity Discount | 1.00% | |||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Market Comparable Companies | Maximum
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| EBITDA Multiple | 11.4 | 13.0 | ||||
| Liquidity Discount | 25.00% | |||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Level 3 | Discounted Cash Flows
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 61,564 | 132,171 | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Level 3 | Market Comparable Companies
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 256,496 | 278,972 | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Level 3 | Transaction Price Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 56 | 10 | ||||
|
Investments Of Consolidated Blackstone Funds | Assets Of Consolidated CLO Vehicles | Level 3 | Third Party Pricing Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | 749,162 | 900,146 | ||||
|
Investments Of Consolidated Blackstone Funds | Investment Funds | Level 3 | Net Asset Value Valuation Technique
|
||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||
| Fair value assets | $ 1,096,331 | $ 890,465 | ||||
|
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