CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 310,583	$ 305,909	$ 244,240
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	128,915	70,416	57,282
Stock-based compensation	30,340	27,218	30,811
Excess tax benefit from stock-based compensation	(1,944)	(6,252)	(3,133)
Loss from settlement of interest rate swap and senior unsecured term loan	0	0	5,624
Loss on disposal of property and equipment	8,399	0	0
Gain on sale of land and building	(1,045)	0	(474)
Noncash charges for interest and bond discount amortization	2,554	2,017	2,065
Deferred income taxes	(33,087)	(5,917)	28,825
Changes in operating assets and liabilities, net of effects of acquisitions:
Trade accounts receivable	(66,400)	(438,642)	(425,690)
Inventory	159,779	200,351	79,137
Other current assets	(13,654)	22,552	53,947
Accounts payable	234,913	468,961	407,477
Change in book overdrafts	(67,370)	(95,965)	(5,935)
Accrued expenses	93,615	(104,225)	(20,043)
Cash provided by operating activities	466,040	45,721	295,859
Cash flows from investing activities:
Capital expenditures	(95,639)	(92,300)	(122,188)
Sale of (investment in) marketable trading securities, net	1,877	2,735	(1,426)
Proceeds from sale of land and building	1,169	0	1,100
Acquisitions and earn-out payments, net of cash acquired	(135,763)	(899,464)	(2,106)
Cash used by investing activities	(228,356)	(989,029)	(124,620)
Cash flows from financing activities:
Proceeds from exercise of stock options	43,384	31,335	39,465
Repurchase of Class A Common Stock	0	(50,000)	(225,905)
Excess tax benefit from stock-based compensation	1,944	6,252	3,133
Net proceeds from issuance of senior unsecured notes	0	296,256	0
Repayment of senior unsecured term loan	0	0	(239,752)
Fees associated with the amendment and extension of credit facilities	(1,086)	0	0
Net proceeds (repayments) on revolving credit facilities	(195,729)	355,918	9,017
Other	(4,423)	0	0
Cash provided (used) by financing activities	(155,910)	639,761	(414,042)
Effect of exchange rate changes on cash and cash equivalents	(2,531)	7,291	(21,345)
Increase (decrease) in cash and cash equivalents	79,243	(296,256)	(264,148)
Cash and cash equivalents, beginning of year	595,147	891,403	1,155,551
Cash and cash equivalents, end of year	674,390	595,147	891,403
Cash payments during the year:
Interest	57,492	53,286	51,703
Income taxes	$ 144,978	$ 103,616	$ 110,336