Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014	Dec. 28, 2014
Cash flows from operating activities:
Net income	$ 40,195	$ 29,007	$ 67,702	$ 75,310
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			78,799	81,991
Share-based compensation			12,242	15,158
Impairment of long-lived assets	10,018	77	11,955	2,606	$ 19,613
Deferred income tax			19,730	47,855
Excess tax benefits from share-based compensation			(46,374)	(17,667)
Non-cash rent expense, net			2,607	2,528
Net receipt of deferred vendor incentives			8,396	13,882
System optimization gains, net			(14,881)	(74,432)
Gain on disposal of Bakery			(27,338)	0
Distributions received from TimWen joint venture			5,825	6,443
Equity in earnings in joint venture, net			(4,545)	(4,872)
Payments for termination of cash flow hedges			(7,337)	0
Loss on early extinguishment of debt	7,295	0	7,295	0
Accretion of long-term debt			600	592
Amortization of deferred financing costs			1,589	1,193
Other, net			1,060	(7,831)
Changes in operating assets and liabilities:
Restricted cash			(27,190)	0
Accounts and notes receivable			(14,876)	(9,650)
Inventories			168	1,200
Prepaid expenses and other current assets			(3,869)	(7,197)
Accounts payable			10,664	(3,699)
Accrued expenses and other current liabilities			(29,108)	(42,401)
Net cash provided by operating activities			53,114	81,009
Cash flows from investing activities:
Capital expenditures			(130,548)	(114,521)
Acquisitions			(1,232)	(2,335)
Dispositions			38,697	116,204
Proceeds from sale of Bakery			78,408	0
Payments for cost method investments			(2,000)	(400)
Change in restricted cash			484	1,750
Other, net			919	1,441
Net cash (used in) provided by investing activities			(15,272)	2,139
Cash flows from financing activities:
Proceeds from long-term debt			2,275,000	0
Repayments of long-term debt			(1,302,055)	(19,486)
Deferred financing costs			(39,374)	0
Repurchases of common stock			(63,206)	(277,275)
Dividends			(40,189)	(36,648)
Proceeds from stock option exercises			19,688	23,800
Excess tax benefits from share-based compensation			46,374	17,667
Net cash provided by (used in) financing activities			896,238	(291,942)
Net cash provided by (used in) operations before effect of exchange rate changes on cash			934,080	(208,794)
Effect of exchange rate changes on cash			(3,789)	302
Net increase (decrease) in cash and cash equivalents			930,291	(208,492)
Cash and cash equivalents at beginning of period			267,276	580,152	580,152
Cash and cash equivalents at end of period	$ 1,197,567	$ 371,660	1,197,567	371,660	$ 267,276
Cash paid for:
Interest			27,452	26,225
Income taxes, net of refunds			11,845	6,699
Supplemental non-cash investing and financing activities:
Capital expenditures included in accounts payable			30,927	39,273
Capitalized lease obligations			20,210	9,113
Notes receivable			2,023	0
Accrued debt issuance costs			$ 3,720	$ 0