CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Cash flows from operating activities:
Net income	$ 31,268	$ 95,070	$ 456,536
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	380,824	337,104	287,230
Deferred income tax expense (benefit)	(86,391)	37,337	42,478
Loss on early extinguishment of debt recognized as a component of interest expense	24,654	0	0
Stock-based compensation activity	11,655	(276)	10,132
Loan cost amortization	5,095	4,848	4,821
Accretion of bond discount	1,533	982	982
Gain on property disposals	(1,476)	(13,766)	(10,896)
Amortization of bond premium	(167)	(668)	(668)
Loss (gain) on equity method investments	(16)	291	(63)
Gain on bargain purchase	0	3,746	(56,880)
Noncash loss on subsidiary dissolution	0	115	0
Foreign currency transaction losses (gains) related to borrowing arrangements	0	0	(4,970)
Changes in operating assets and liabilities:
Trade accounts and other receivables	(259,377)	29,154	(25,000)
Inventories	(177,864)	26,041	(111,748)
Prepaid expenses and other current assets	(53,797)	(50,347)	(15,490)
Accounts payable and accrued expenses	359,589	295,327	119,892
Income taxes	115,216	(39,436)	(26,378)
Long-term pension and other postretirement obligations	(18,461)	(7,883)	(9,221)
Other operating assets and liabilities	(5,826)	6,608	5,764
Cash provided by operating activities	326,459	724,247	666,521
Cash flows from investing activities:
Purchase of acquired businesses, net of cash acquired	(966,766)	(4,216)	(384,694)
Acquisitions of property, plant and equipment	(381,671)	(354,762)	(348,120)
Proceeds from property disposals	24,724	31,976	15,753
Cash used in investing activities	(1,323,713)	(327,002)	(717,061)
Cash flows from financing activities:
Proceeds from revolving line of credit and long-term borrowings	2,951,707	404,522	259,466
Payments on revolving line of credit, long-term borrowings and finance lease obligations	(2,006,195)	(430,988)	(289,917)
Payment of capitalized loan costs	(22,293)	0	(652)
Payment on early extinguishment of debt	(21,258)	0	0
Distribution of capital under the TSA	(650)	0	(525)
Purchase of common stock under stock repurchase program	0	(110,242)	(2,898)
Cash provided by (used in) financing activities	901,311	(136,708)	(34,526)
Effect of exchange rate changes on cash and cash equivalents	(2,342)	7,292	4,065
Increase (decrease) in cash and cash equivalents	(98,285)	267,829	(81,001)
Cash and cash equivalents, beginning of year	548,406	280,577	361,578
Cash and cash equivalents, end of year	450,121	548,406	280,577
Supplemental Disclosure Information:
Interest paid (net of amount capitalized)	119,328	130,641	130,882
Income taxes paid	$ 20,863	$ 51,710	$ 125,856