Collateralized Transactions (Tables)

3 Months Ended

Mar. 31, 2013

Collateralized Transactions [Abstract]

Fair Value Of Securities Received As Collateral

Carrying amount:
Securities purchased under agreements to resell	$	3,578,366
Securities borrowed		5,315,488
Securities received as collateral		25,338
Total assets on Consolidated Statement of Financial Condition		8,919,192
Netting of securities purchased under agreements to resell (1)		9,027,147
		17,946,339
Fair value of collateral received in excess of contract amount (2)		3,854,353
Fair value of securities received as collateral	$	21,800,692

(1)   Represents the netting of securities purchased under agreements to resell with securities sold under agreements to repurchase balances for the same counterparty under legally enforceable netting agreements.

(2)   Includes collateral received from customers for margin balances unrelated to arrangements for securities purchased under agreements to resell or securities borrowed with a fair value of $1,381.0 million at March 31, 2013, of which $812.6 million had been rehypothecated and collateral received on securities for securities transactions of $2,302.7 million at March 31, 2013.