Collateralized Transactions (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Securities received as collateral:
Securities borrowed	$ 1,361,635	$ 1,415,793
Securities purchased under agreements to resell	15,475	0
Securities received as collateral	1,377,110	1,415,793
Financial Instruments Owned and Pledged as Collateral [Line Items]
Financial instruments owned and pledged	791,115	595,043
Equities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Financial instruments owned and pledged	748,846	586,251
U.S. and Non-U.S. government obligations
Financial Instruments Owned and Pledged as Collateral [Line Items]
Financial instruments owned and pledged	0	99
Exchange traded notes
Financial Instruments Owned and Pledged as Collateral [Line Items]
Financial instruments owned and pledged	$ 42,269	$ 8,693

The total of collateralized agreements including securities purchased under agreements to resell (repos), borrowed securities, and secured demand notes.

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The fair value as of the balance sheet date of financial instruments and other positions owned by the entity and pledged to counterparties as collateral, including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities.

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- 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.

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Amount, after the effects of master netting arrangements, of funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes purchases of participations in pools of securities that are subject to a resale agreement, assets not subject to a master netting arrangement and not elected to be offset.

+ References

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-Publisher FASB
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- References

No definition available.

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Amount, after the effects of master netting arrangements, of securities borrowed from entities in exchange for collateral. Includes assets not subject to a master netting arrangement and not elected to be offset, at market value.

+ References

No definition available.

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