Guarantor Financial Information (Condensed Consolidated Statements of Cash Flows) (Details) - USD ($)	1 Months Ended	3 Months Ended						9 Months Ended
	Jan. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Sep. 26, 2020	Sep. 28, 2019
Cash flows from operating activities:
Net income		$ 101,605,000	$ 66,495,000	$ 86,091,000	$ 26,837,000	$ 31,044,000	$ 19,640,000	$ 254,191,000	$ 77,521,000
Earnings in investments in subsidiaries		0			0			0	0
Other operating cash flows								216,222,000	185,161,000
Net cash provided by operating activities								470,413,000	262,682,000
Cash flows from investing activities:
Capital expenditures								(184,919,000)	(245,092,000)
Acquisitions	$ (12,200,000)							0	(1,431,000)
Investment in subsidiaries and affiliates								0	(2,000,000)
Note receivable from affiliates								0	0
Gross proceeds from disposal of property, plant and equipment and other assets								1,291,000	15,402,000
Proceeds from insurance settlement								0	1,371,000
Payments related to routes and other intangibles								(3,712,000)	(3,150,000)
Net cash used in investing activities								(187,340,000)	(234,900,000)
Cash flows from financing activities:
Proceeds from long-term debt								24,085,000	511,985,000
Payments on long-term debt								(171,640,000)	(566,107,000)
Borrowings from revolving credit facility								390,971,000	325,485,000
Payments on revolving credit facility								(415,800,000)	(332,884,000)
Net cash overdraft financing								(33,385,000)	27,858,000
Deferred loan costs								(3,688,000)	(7,027,000)
Issuance of common stock								67,000	39,000
Repurchase of common stock		0	$ (55,000,000.0)					(55,044,000)	(11,740,000)
Contributions from parent								0	0
Minimum withholding taxes paid on stock awards								(7,980,000)	(3,247,000)
Acquisition of noncontrolling interest								(8,784,000)
Distributions to noncontrolling interests								(6,253,000)	(4,500,000)
Net cash used in financing activities								(287,451,000)	(60,138,000)
Effect of exchange rate changes on cash								(2,712,000)	(5,732,000)
Net decrease in cash, cash equivalents and restricted cash								(7,090,000)	(38,088,000)
Cash, cash equivalents and restricted cash at beginning of period				73,045,000			107,369,000	73,045,000	107,369,000
Cash, cash equivalents and restricted cash at end of period		65,955,000			69,281,000			65,955,000	69,281,000
Parent [Member]
Cash flows from operating activities:
Net income		101,605,000			26,837,000			254,191,000	77,521,000
Earnings in investments in subsidiaries		(135,357,000)			(52,697,000)			(346,144,000)	(176,004,000)
Other operating cash flows								357,187,000	189,575,000
Net cash provided by operating activities								265,234,000	91,092,000
Cash flows from investing activities:
Capital expenditures								(44,730,000)	(88,639,000)
Acquisitions									(1,157,000)
Investment in subsidiaries and affiliates								(18,784,000)	(2,393,000)
Note receivable from affiliates								42,884,000	38,274,000
Gross proceeds from disposal of property, plant and equipment and other assets								30,000	380,000
Proceeds from insurance settlement									0
Payments related to routes and other intangibles								(3,416,000)	(131,000)
Net cash used in investing activities								(24,016,000)	(53,666,000)
Cash flows from financing activities:
Proceeds from long-term debt								0	500,000,000
Payments on long-term debt								(145,003,000)	(545,872,000)
Borrowings from revolving credit facility								248,000,000	176,000,000
Payments on revolving credit facility								(272,000,000)	(152,000,000)
Net cash overdraft financing								(5,417,000)	5,951,000
Deferred loan costs								(3,688,000)	(7,027,000)
Issuance of common stock								67,000	39,000
Repurchase of common stock								(55,044,000)	(11,740,000)
Contributions from parent								0	0
Minimum withholding taxes paid on stock awards								(7,967,000)	(3,230,000)
Acquisition of noncontrolling interest								0
Distributions to noncontrolling interests								0	0
Net cash used in financing activities								(241,052,000)	(37,879,000)
Effect of exchange rate changes on cash								0	0
Net decrease in cash, cash equivalents and restricted cash								166,000	(453,000)
Cash, cash equivalents and restricted cash at beginning of period				654,000			1,098,000	654,000	1,098,000
Cash, cash equivalents and restricted cash at end of period		820,000			645,000			820,000	645,000
Guarantors [Member]
Cash flows from operating activities:
Net income		21,876,000			15,165,000			63,051,000	50,505,000
Earnings in investments in subsidiaries		0			0			0	0
Other operating cash flows								(16,471,000)	(2,763,000)
Net cash provided by operating activities								46,580,000	47,742,000
Cash flows from investing activities:
Capital expenditures								(46,848,000)	(61,337,000)
Acquisitions									0
Investment in subsidiaries and affiliates								0	(393,000)
Note receivable from affiliates								0	0
Gross proceeds from disposal of property, plant and equipment and other assets								273,000	12,223,000
Proceeds from insurance settlement									1,371,000
Payments related to routes and other intangibles								0	0
Net cash used in investing activities								(46,575,000)	(48,136,000)
Cash flows from financing activities:
Proceeds from long-term debt								0	0
Payments on long-term debt								(7,000)	(5,000)
Borrowings from revolving credit facility								0	0
Payments on revolving credit facility								0	0
Net cash overdraft financing								0	0
Deferred loan costs								0	0
Issuance of common stock								0	0
Repurchase of common stock								0	0
Contributions from parent								0	393,000
Minimum withholding taxes paid on stock awards								0	0
Acquisition of noncontrolling interest								0
Distributions to noncontrolling interests								0	0
Net cash used in financing activities								(7,000)	388,000
Effect of exchange rate changes on cash								0	0
Net decrease in cash, cash equivalents and restricted cash								(2,000)	(6,000)
Cash, cash equivalents and restricted cash at beginning of period				26,000			32,000	26,000	32,000
Cash, cash equivalents and restricted cash at end of period		24,000			26,000			24,000	26,000
Non-guarantors [Member]
Cash flows from operating activities:
Net income		113,481,000			37,532,000			283,093,000	125,499,000
Earnings in investments in subsidiaries		0			0			0	0
Other operating cash flows								(124,494,000)	(1,651,000)
Net cash provided by operating activities								158,599,000	123,848,000
Cash flows from investing activities:
Capital expenditures								(93,341,000)	(95,116,000)
Acquisitions									(274,000)
Investment in subsidiaries and affiliates								0	0
Note receivable from affiliates								(42,884,000)	(38,274,000)
Gross proceeds from disposal of property, plant and equipment and other assets								988,000	2,799,000
Proceeds from insurance settlement									0
Payments related to routes and other intangibles								(296,000)	(3,019,000)
Net cash used in investing activities								(135,533,000)	(133,884,000)
Cash flows from financing activities:
Proceeds from long-term debt								24,085,000	11,985,000
Payments on long-term debt								(26,630,000)	(20,230,000)
Borrowings from revolving credit facility								142,971,000	149,485,000
Payments on revolving credit facility								(143,800,000)	(180,884,000)
Net cash overdraft financing								(27,968,000)	21,907,000
Deferred loan costs								0	0
Issuance of common stock								0	0
Repurchase of common stock								0	0
Contributions from parent								18,784,000	393,000
Minimum withholding taxes paid on stock awards								(13,000)	(17,000)
Acquisition of noncontrolling interest								(8,784,000)
Distributions to noncontrolling interests								(6,253,000)	(4,500,000)
Net cash used in financing activities								(27,608,000)	(21,861,000)
Effect of exchange rate changes on cash								(2,712,000)	(5,732,000)
Net decrease in cash, cash equivalents and restricted cash								(7,254,000)	(37,629,000)
Cash, cash equivalents and restricted cash at beginning of period				72,365,000			106,239,000	72,365,000	106,239,000
Cash, cash equivalents and restricted cash at end of period		65,111,000			68,610,000			65,111,000	68,610,000
Eliminations [Member]
Cash flows from operating activities:
Net income		(135,357,000)			(52,697,000)			(346,144,000)	(176,004,000)
Earnings in investments in subsidiaries		135,357,000			52,697,000			346,144,000	176,004,000
Other operating cash flows								0	0
Net cash provided by operating activities								0	0
Cash flows from investing activities:
Capital expenditures								0	0
Acquisitions									0
Investment in subsidiaries and affiliates								18,784,000	786,000
Note receivable from affiliates								0	0
Gross proceeds from disposal of property, plant and equipment and other assets								0	0
Proceeds from insurance settlement									0
Payments related to routes and other intangibles								0	0
Net cash used in investing activities								18,784,000	786,000
Cash flows from financing activities:
Proceeds from long-term debt								0	0
Payments on long-term debt								0	0
Borrowings from revolving credit facility								0	0
Payments on revolving credit facility								0	0
Net cash overdraft financing								0	0
Deferred loan costs								0	0
Issuance of common stock								0	0
Repurchase of common stock								0	0
Contributions from parent								(18,784,000)	(786,000)
Minimum withholding taxes paid on stock awards								0	0
Acquisition of noncontrolling interest								0
Distributions to noncontrolling interests								0	0
Net cash used in financing activities								(18,784,000)	(786,000)
Effect of exchange rate changes on cash								0	0
Net decrease in cash, cash equivalents and restricted cash								0	0
Cash, cash equivalents and restricted cash at beginning of period				$ 0			$ 0	0	0
Cash, cash equivalents and restricted cash at end of period		$ 0			$ 0			$ 0	$ 0