Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2012	Jun. 24, 2011	Jun. 29, 2012	Jun. 24, 2011
Trade revenue
Commissions	$ 479,983	$ 437,413	$ 960,604	$ 859,842
Principal transactions	41,815	68,251	87,116	147,659
Investment banking	30,038	40,617	59,112	82,855
Total trade revenue	551,836	546,281	1,106,832	1,090,356
Fee revenue
Asset-based	494,636	455,064	976,965	873,506
Account and activity	143,462	129,884	284,030	254,986
Total fee revenue	638,098	584,948	1,260,995	1,128,492
Interest and dividends	33,344	32,420	65,652	63,030
Other revenue	6,960	6,108	19,205	11,773
Total revenue	1,230,238	1,169,757	2,452,684	2,293,651
Interest expense	15,752	17,528	31,876	35,152
Net revenue	1,214,486	1,152,229	2,420,808	2,258,499
Operating expenses:
Compensation and benefits	797,199	748,113	1,577,855	1,460,762
Occupancy and equipment	87,342	88,703	177,153	177,975
Communications and data processing	70,753	74,872	141,917	146,802
Payroll and other taxes	46,336	42,742	98,986	91,322
Advertising	12,982	13,985	25,524	29,781
Postage and shipping	11,966	11,805	24,347	23,267
Clearance fees	3,025	3,173	6,472	6,581
Other operating expenses	45,921	44,439	91,027	79,973
Total operating expenses	1,075,524	1,027,832	2,143,281	2,016,463
Income before allocations to partners	138,962	124,397	277,527	242,036
Allocations to partners:
Limited partners	18,056	18,125	36,166	35,337
Subordinated limited partners	15,400	12,814	31,068	25,173
General partners	105,506	93,458	210,293	181,526
Net Income
Income before allocations to partners per weighted average $1,000 equivalent limited partnership unit outstanding	27.50	27.03	54.92	52.58
Weighted average $1,000 equivalent limited partnership units outstanding	656,582	670,551	658,521	672,062