SEGMENT INFORMATION (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
SEGMENT INFORMATION
Number of reportable segments			2
Segment information
Net sales	$ 462,145,000	$ 365,701,000	$ 818,564,000	$ 603,812,000
Contribution margin	151,859,000	131,226,000	261,594,000	204,547,000
Corporate and unallocated expense	(19,377,000)	(21,550,000)	(40,658,000)	(44,085,000)
Operating income	132,482,000	109,676,000	220,936,000	160,462,000
Other income (expense)	274,000	321,000	576,000	1,306,000
Income before provision for income taxes	132,756,000	109,997,000	221,512,000	161,768,000
Depreciation and amortization	4,091,000	2,809,000	7,671,000	5,450,000
Trademark amortization	12,000	12,000	24,000	24,000
Stock-based compensation expense	4,100,000	3,500,000	7,900,000	8,500,000
Bad debt expense			53,000	1,265,000
Direct Store Delivery ("DSD")
Segment information
Net sales	436,656,000	341,292,000	771,378,000	558,446,000
Contribution margin	150,456,000	129,394,000	260,531,000	202,449,000
Other income (expense)	(21,000)	(4,000)	(8,000)	55,000
Depreciation and amortization	3,072,000	1,565,000	5,617,000	3,029,000
Warehouse ("Warehouse")
Segment information
Net sales	25,489,000	24,409,000	47,186,000	45,366,000
Contribution margin	1,403,000	1,832,000	1,063,000	2,098,000
Depreciation and amortization	20,000	12,000	37,000	23,000
Trademark amortization	11,000	11,000	22,000	22,000
Corporate and Unallocated
Segment information
Corporate and unallocated expense	(19,377,000)	(21,550,000)	(40,658,000)	(44,085,000)
Other income (expense)	295,000	325,000	584,000	1,251,000
Depreciation and amortization	999,000	1,232,000	2,017,000	2,398,000
Trademark amortization	1,000	1,000	2,000	2,000
Payroll cost	12,300,000	11,700,000	25,000,000	24,600,000
Stock-based compensation expense	4,100,000	3,500,000	7,900,000	8,500,000
Professional service expenses	3,400,000	4,800,000	8,600,000	10,300,000
Other operating expenses	3,700,000	2,500,000	7,100,000	5,500,000
Bad debt expense		$ 1,300,000		$ 1,300,000