Collateralized Transactions	3 Months Ended
Mar. 31, 2015
Collateralized Transactions [Abstract]
Collateralized Transactions	Note 5. Collateralized Transactions Jefferies enters into secured borrowing and lending arrangements to obtain collateral necessary to effect settlement, finance trading asset inventory positions, meet customer needs or re-lend as part of dealer operations. Jefferies monitors the fair value of the securities loaned and borrowed on a daily basis as compared with the related payable or receivable, and requests additional collateral or returns excess collateral, as appropriate. Jefferies pledges financial instruments as collateral under repurchase agreements, securities lending agreements and other secured arrangements, including clearing arrangements. Jefferies agreements with counterparties generally contain contractual provisions allowing the counterparty the right to sell or repledge the collateral. Pledged securities owned that can be sold or repledged by the counterparty are included within Financial instruments owned and noted parenthetically as Securities pledged on our Consolidated Statements of Financial Condition. Jefferies receives securities as collateral under resale agreements, securities borrowing transactions and customer margin loans. Jefferies also receives securities as collateral in connection with securities-for-securities transactions in which it is the lender of securities. In many instances, Jefferies is permitted by contract or custom to rehypothecate the securities received as collateral. These securities may be used to secure repurchase agreements, enter into securities lending transactions, satisfy margin requirements on derivative transactions or cover short positions. At March 31, 2015 and December 31, 2014, the approximate fair value of securities received as collateral by Jefferies that may be sold or repledged was $23.1 billion and $25.8 billion, respectively. A substantial portion of these securities have been sold or repledged. In instances where Jefferies receives securities as collateral in connection with securities-for-securities transactions in which Jefferies is the lender of securities and is permitted to sell or repledge the securities received as collateral, it reports the fair value of the collateral received and the related obligation to return the collateral in the Consolidated Statements of Financial Condition. At March 31, 2015 and December 31, 2014, $4.8 million and $5.4 million, respectively, were reported as Securities received as collateral and as Obligation to return securities received as collateral.

Note 5. Collateralized Transactions

Jefferies enters into secured borrowing and lending arrangements to obtain collateral necessary to effect settlement, finance trading asset inventory positions, meet customer needs or re-lend as part of dealer operations. Jefferies monitors the fair value of the securities loaned and borrowed on a daily basis as compared with the related payable or receivable, and requests additional collateral or returns excess collateral, as appropriate. Jefferies pledges financial instruments as collateral under repurchase agreements, securities lending agreements and other secured arrangements, including clearing arrangements. Jefferies agreements with counterparties generally contain contractual provisions allowing the counterparty the right to sell or repledge the collateral. Pledged securities owned that can be sold or repledged by the counterparty are included within Financial instruments owned and noted parenthetically as Securities pledged on our Consolidated Statements of Financial Condition.

Jefferies receives securities as collateral under resale agreements, securities borrowing transactions and customer margin loans. Jefferies also receives securities as collateral in connection with securities-for-securities transactions in which it is the lender of securities. In many instances, Jefferies is permitted by contract or custom to rehypothecate the securities received as collateral. These securities may be used to secure repurchase agreements, enter into securities lending transactions, satisfy margin requirements on derivative transactions or cover short positions. At March 31, 2015 and December 31, 2014, the approximate fair value of securities received as collateral by Jefferies that may be sold or repledged was $23.1 billion and $25.8 billion, respectively. A substantial portion of these securities have been sold or repledged.

In instances where Jefferies receives securities as collateral in connection with securities-for-securities transactions in which Jefferies is the lender of securities and is permitted to sell or repledge the securities received as collateral, it reports the fair value of the collateral received and the related obligation to return the collateral in the Consolidated Statements of Financial Condition. At March 31, 2015 and December 31, 2014, $4.8 million and $5.4 million, respectively, were reported as Securities received as collateral and as Obligation to return securities received as collateral.