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Condensed Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Investments assets pledged	$ 267,910	$ 279,502
Partners' Capital, common units: issued	660,588,369	663,212,830
Partners' Capital, common units: outstanding	660,588,369	663,212,830
Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Assets	$ 9,335,396	$ 8,890,745
Liabilities	7,410,329	7,177,062
Consolidated Blackstone Funds | Repurchase Agreements | Variable Interest Entity, Primary Beneficiary
Liabilities	207,676	222,202
Consolidated Blackstone Funds | Loans Payable | Variable Interest Entity, Primary Beneficiary
Liabilities	6,536,220	6,480,711
Securities Sold, Not Yet Purchased | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Liabilities	82,174	92,603
Investments | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Assets	8,623,436	8,363,669
Accounts Receivable | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Assets	369,978	179,863
Cash Held by Funds and Other | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Assets	324,609	337,030
Due from Affiliates | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Assets	16,774	6,303
Other Assets | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Assets	599	3,880
Due to Affiliates | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Liabilities	173,544	129,370
Accounts Payable, Accrued Expenses and Other Liabilities | Consolidated Blackstone Funds | Variable Interest Entity, Primary Beneficiary
Liabilities	$ 410,715	$ 252,176

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